This gist contains all the States and Districts of India in a JSON format . This is created in the view that it might be useful in any projects like filtering a selection box of districts after selecting state.

All States and Districts.json

{
    "Tripura": [
        "Dhalai",
        "Gomati",
        "Khowai",
        "North Tripura",
        "Sepahijala",
        "South Tripura",
        "Unakoti",
        "West Tripura"
    ],
    "Lakshadweep (UT)": [
        "Lakshadweep"
    ],
    "Daman and Diu (UT)": [
        "Daman",
        "Diu"
    ],
    "Mizoram": [
        "Aizawl",
        "Champhai",
        "Kolasib",
        "Lawngtlai",
        "Lunglei",
        "Mamit",
        "Saiha",
        "Serchhip"
    ],
    "Kerala": [
        "Alappuzha",
        "Ernakulam",
        "Idukki",
        "Kannur",
        "Kasaragod",
        "Kollam",
        "Kottayam",
        "Kozhikode",
        "Malappuram",
        "Palakkad",
        "Pathanamthitta",
        "Thiruvananthapuram",
        "Thrissur",
        "Wayanad"
    ],
    "Jammu and Kashmir": [
        "Anantnag",
        "Bandipore",
        "Baramulla",
        "Budgam",
        "Doda",
        "Ganderbal",
        "Jammu",
        "Kargil",
        "Kathua",
        "Kishtwar",
        "Kulgam",
        "Kupwara",
        "Leh",
        "Poonch",
        "Pulwama",
        "Rajouri",
        "Ramban",
        "Reasi",
        "Samba",
        "Shopian",
        "Srinagar",
        "Udhampur"
    ],
    "West Bengal": [
        "Alipurduar",
        "Bankura",
        "Birbhum",
        "Burdwan (Bardhaman)",
        "Cooch Behar",
        "Dakshin Dinajpur (South Dinajpur)",
        "Darjeeling",
        "Hooghly",
        "Howrah",
        "Jalpaiguri",
        "Kalimpong",
        "Kolkata",
        "Malda",
        "Murshidabad",
        "Nadia",
        "North 24 Parganas",
        "Paschim Medinipur (West Medinipur)",
        "Purba Medinipur (East Medinipur)",
        "Purulia",
        "South 24 Parganas",
        "Uttar Dinajpur (North Dinajpur)"
    ],
    "Haryana": [
        "Ambala",
        "Bhiwani",
        "Charkhi Dadri",
        "Faridabad",
        "Fatehabad",
        "Gurugram (Gurgaon)",
        "Hisar",
        "Jhajjar",
        "Jind",
        "Kaithal",
        "Karnal",
        "Kurukshetra",
        "Mahendragarh",
        "Nuh",
        "Palwal",
        "Panchkula",
        "Panipat",
        "Rewari",
        "Rohtak",
        "Sirsa",
        "Sonipat",
        "Yamunanagar"
    ],
    "Bihar": [
        "Araria",
        "Arwal",
        "Aurangabad",
        "Banka",
        "Begusarai",
        "Bhagalpur",
        "Bhojpur",
        "Buxar",
        "Darbhanga",
        "East Champaran (Motihari)",
        "Gaya",
        "Gopalganj",
        "Jamui",
        "Jehanabad",
        "Kaimur (Bhabua)",
        "Katihar",
        "Khagaria",
        "Kishanganj",
        "Lakhisarai",
        "Madhepura",
        "Madhubani",
        "Munger (Monghyr)",
        "Muzaffarpur",
        "Nalanda",
        "Nawada",
        "Patna",
        "Purnia (Purnea)",
        "Rohtas",
        "Saharsa",
        "Samastipur",
        "Saran",
        "Sheikhpura",
        "Sheohar",
        "Sitamarhi",
        "Siwan",
        "Supaul",
        "Vaishali",
        "West Champaran"
    ],
    "Karnataka": [
        "Bagalkot",
        "Ballari (Bellary)",
        "Belagavi (Belgaum)",
        "Bengaluru (Bangalore) Rural",
        "Bengaluru (Bangalore) Urban",
        "Bidar",
        "Chamarajanagar",
        "Chikballapur",
        "Chikkamagaluru (Chikmagalur)",
        "Chitradurga",
        "Dakshina Kannada",
        "Davangere",
        "Dharwad",
        "Gadag",
        "Hassan",
        "Haveri",
        "Kalaburagi (Gulbarga)",
        "Kodagu",
        "Kolar",
        "Koppal",
        "Mandya",
        "Mysuru (Mysore)",
        "Raichur",
        "Ramanagara",
        "Shivamogga (Shimoga)",
        "Tumakuru (Tumkur)",
        "Udupi",
        "Uttara Kannada (Karwar)",
        "Vijayapura (Bijapur)",
        "Yadgir"
    ],
    "Nagaland": [
        "Dimapur",
        "Kiphire",
        "Kohima",
        "Longleng",
        "Mokokchung",
        "Mon",
        "Peren",
        "Phek",
        "Tuensang",
        "Wokha",
        "Zunheboto"
    ],
    "Assam": [
        "Baksa",
        "Barpeta",
        "Biswanath",
        "Bongaigaon",
        "Cachar",
        "Charaideo",
        "Chirang",
        "Darrang",
        "Dhemaji",
        "Dhubri",
        "Dibrugarh",
        "Dima Hasao (North Cachar Hills)",
        "Goalpara",
        "Golaghat",
        "Hailakandi",
        "Hojai",
        "Jorhat",
        "Kamrup",
        "Kamrup Metropolitan",
        "Karbi Anglong",
        "Karimganj",
        "Kokrajhar",
        "Lakhimpur",
        "Majuli",
        "Morigaon",
        "Nagaon",
        "Nalbari",
        "Sivasagar",
        "Sonitpur",
        "South Salamara-Mankachar",
        "Tinsukia",
        "Udalguri",
        "West Karbi Anglong"
    ],
    "Rajasthan": [
        "Ajmer",
        "Alwar",
        "Banswara",
        "Baran",
        "Barmer",
        "Bharatpur",
        "Bhilwara",
        "Bikaner",
        "Bundi",
        "Chittorgarh",
        "Churu",
        "Dausa",
        "Dholpur",
        "Dungarpur",
        "Hanumangarh",
        "Jaipur",
        "Jaisalmer",
        "Jalore",
        "Jhalawar",
        "Jhunjhunu",
        "Jodhpur",
        "Karauli",
        "Kota",
        "Nagaur",
        "Pali",
        "Pratapgarh",
        "Rajsamand",
        "Sawai Madhopur",
        "Sikar",
        "Sirohi",
        "Sri Ganganagar",
        "Tonk",
        "Udaipur"
    ],
    "Punjab": [
        "Amritsar",
        "Barnala",
        "Bathinda",
        "Faridkot",
        "Fatehgarh Sahib",
        "Fazilka",
        "Ferozepur",
        "Gurdaspur",
        "Hoshiarpur",
        "Jalandhar",
        "Kapurthala",
        "Ludhiana",
        "Mansa",
        "Moga",
        "Muktsar",
        "Nawanshahr (Shahid Bhagat Singh Nagar)",
        "Pathankot",
        "Patiala",
        "Rupnagar",
        "Sahibzada Ajit Singh Nagar (Mohali)",
        "Sangrur",
        "Tarn Taran"
    ],
    "Himachal Pradesh": [
        "Bilaspur",
        "Chamba",
        "Hamirpur",
        "Kangra",
        "Kinnaur",
        "Kullu",
        "Lahaul & Spiti",
        "Mandi",
        "Shimla",
        "Sirmaur (Sirmour)",
        "Solan",
        "Una"
    ],
    "Delhi (NCT)": [
        "Central Delhi",
        "East Delhi",
        "New Delhi",
        "North Delhi",
        "North East  Delhi",
        "North West  Delhi",
        "Shahdara",
        "South Delhi",
        "South East Delhi",
        "South West  Delhi",
        "West Delhi"
    ],
    "Goa": [
        "North Goa",
        "South Goa"
    ],
    "Sikkim": [
        "East Sikkim",
        "North Sikkim",
        "South Sikkim",
        "West Sikkim"
    ],
    "Meghalaya": [
        "East Garo Hills",
        "East Jaintia Hills",
        "East Khasi Hills",
        "North Garo Hills",
        "Ri Bhoi",
        "South Garo Hills",
        "South West Garo Hills ",
        "South West Khasi Hills",
        "West Garo Hills",
        "West Jaintia Hills",
        "West Khasi Hills"
    ],
    "Telangana": [
        "Adilabad",
        "Bhadradri Kothagudem",
        "Hyderabad",
        "Jagtial",
        "Jangaon",
        "Jayashankar Bhoopalpally",
        "Jogulamba Gadwal",
        "Kamareddy",
        "Karimnagar",
        "Khammam",
        "Komaram Bheem Asifabad",
        "Mahabubabad",
        "Mahabubnagar",
        "Mancherial",
        "Medak",
        "Medchal",
        "Nagarkurnool",
        "Nalgonda",
        "Nirmal",
        "Nizamabad",
        "Peddapalli",
        "Rajanna Sircilla",
        "Rangareddy",
        "Sangareddy",
        "Siddipet",
        "Suryapet",
        "Vikarabad",
        "Wanaparthy",
        "Warangal (Rural)",
        "Warangal (Urban)",
        "Yadadri Bhuvanagiri"
    ],
    "Jharkhand": [
        "Bokaro",
        "Chatra",
        "Deoghar",
        "Dhanbad",
        "Dumka",
        "East Singhbhum",
        "Garhwa",
        "Giridih",
        "Godda",
        "Gumla",
        "Hazaribag",
        "Jamtara",
        "Khunti",
        "Koderma",
        "Latehar",
        "Lohardaga",
        "Pakur",
        "Palamu",
        "Ramgarh",
        "Ranchi",
        "Sahibganj",
        "Seraikela-Kharsawan",
        "Simdega",
        "West Singhbhum"
    ],
    "Manipur": [
        "Bishnupur",
        "Chandel",
        "Churachandpur",
        "Imphal East",
        "Imphal West",
        "Jiribam",
        "Kakching",
        "Kamjong",
        "Kangpokpi",
        "Noney",
        "Pherzawl",
        "Senapati",
        "Tamenglong",
        "Tengnoupal",
        "Thoubal",
        "Ukhrul"
    ],
    "Andhra Pradesh": [
        "Anantapur",
        "Chittoor",
        "East Godavari",
        "Guntur",
        "Krishna",
        "Kurnool",
        "Prakasam",
        "Srikakulam",
        "Sri Potti Sriramulu Nellore",
        "Visakhapatnam",
        "Vizianagaram",
        "West Godavari",
        "YSR District, Kadapa (Cuddapah)"
    ],
    "Gujarat": [
        "Ahmedabad",
        "Amreli",
        "Anand",
        "Aravalli",
        "Banaskantha (Palanpur)",
        "Bharuch",
        "Bhavnagar",
        "Botad",
        "Chhota Udepur",
        "Dahod",
        "Dangs (Ahwa)",
        "Devbhoomi Dwarka",
        "Gandhinagar",
        "Gir Somnath",
        "Jamnagar",
        "Junagadh",
        "Kachchh",
        "Kheda (Nadiad)",
        "Mahisagar",
        "Mehsana",
        "Morbi",
        "Narmada (Rajpipla)",
        "Navsari",
        "Panchmahal (Godhra)",
        "Patan",
        "Porbandar",
        "Rajkot",
        "Sabarkantha (Himmatnagar)",
        "Surat",
        "Surendranagar",
        "Tapi (Vyara)",
        "Vadodara",
        "Valsad"
    ],
    "Dadra and Nagar Haveli (UT)": [
        "Dadra & Nagar Haveli"
    ],
    "Madhya Pradesh": [
        "Agar Malwa",
        "Alirajpur",
        "Anuppur",
        "Ashoknagar",
        "Balaghat",
        "Barwani",
        "Betul",
        "Bhind",
        "Bhopal",
        "Burhanpur",
        "Chhatarpur",
        "Chhindwara",
        "Damoh",
        "Datia",
        "Dewas",
        "Dhar",
        "Dindori",
        "Guna",
        "Gwalior",
        "Harda",
        "Hoshangabad",
        "Indore",
        "Jabalpur",
        "Jhabua",
        "Katni",
        "Khandwa",
        "Khargone",
        "Mandla",
        "Mandsaur",
        "Morena",
        "Narsinghpur",
        "Neemuch",
        "Panna",
        "Raisen",
        "Rajgarh",
        "Ratlam",
        "Rewa",
        "Sagar",
        "Satna",
        "Sehore",
        "Seoni",
        "Shahdol",
        "Shajapur",
        "Sheopur",
        "Shivpuri",
        "Sidhi",
        "Singrauli",
        "Tikamgarh",
        "Ujjain",
        "Umaria",
        "Vidisha"
    ],
    "Tamil Nadu": [
        "Ariyalur",
        "Chennai",
        "Coimbatore",
        "Cuddalore",
        "Dharmapuri",
        "Dindigul",
        "Erode",
        "Kanchipuram",
        "Kanyakumari",
        "Karur",
        "Krishnagiri",
        "Madurai",
        "Nagapattinam",
        "Namakkal",
        "Nilgiris",
        "Perambalur",
        "Pudukkottai",
        "Ramanathapuram",
        "Salem",
        "Sivaganga",
        "Thanjavur",
        "Theni",
        "Thoothukudi (Tuticorin)",
        "Tiruchirappalli",
        "Tirunelveli",
        "Tiruppur",
        "Tiruvallur",
        "Tiruvannamalai",
        "Tiruvarur",
        "Vellore",
        "Viluppuram",
        "Virudhunagar"
    ],
    "Odisha": [
        "Angul",
        "Balangir",
        "Balasore",
        "Bargarh",
        "Bhadrak",
        "Boudh",
        "Cuttack",
        "Deogarh",
        "Dhenkanal",
        "Gajapati",
        "Ganjam",
        "Jagatsinghapur",
        "Jajpur",
        "Jharsuguda",
        "Kalahandi",
        "Kandhamal",
        "Kendrapara",
        "Kendujhar (Keonjhar)",
        "Khordha",
        "Koraput",
        "Malkangiri",
        "Mayurbhanj",
        "Nabarangpur",
        "Nayagarh",
        "Nuapada",
        "Puri",
        "Rayagada",
        "Sambalpur",
        "Sonepur",
        "Sundargarh"
    ],
    "Puducherry (UT)": [
        "Karaikal",
        "Mahe",
        "Pondicherry",
        "Yanam"
    ],
    "Chandigarh (UT)": [
        "Chandigarh"
    ],
    "Uttarakhand": [
        "Almora",
        "Bageshwar",
        "Chamoli",
        "Champawat",
        "Dehradun",
        "Haridwar",
        "Nainital",
        "Pauri Garhwal",
        "Pithoragarh",
        "Rudraprayag",
        "Tehri Garhwal",
        "Udham Singh Nagar",
        "Uttarkashi"
    ],
    "Uttar Pradesh": [
        "Agra",
        "Aligarh",
        "Allahabad",
        "Ambedkar Nagar",
        "Amethi (Chatrapati Sahuji Mahraj Nagar)",
        "Amroha (J.P. Nagar)",
        "Auraiya",
        "Azamgarh",
        "Baghpat",
        "Bahraich",
        "Ballia",
        "Balrampur",
        "Banda",
        "Barabanki",
        "Bareilly",
        "Basti",
        "Bhadohi",
        "Bijnor",
        "Budaun",
        "Bulandshahr",
        "Chandauli",
        "Chitrakoot",
        "Deoria",
        "Etah",
        "Etawah",
        "Faizabad",
        "Farrukhabad",
        "Fatehpur",
        "Firozabad",
        "Gautam Buddha Nagar",
        "Ghaziabad",
        "Ghazipur",
        "Gonda",
        "Gorakhpur",
        "Hamirpur",
        "Hapur (Panchsheel Nagar)",
        "Hardoi",
        "Hathras",
        "Jalaun",
        "Jaunpur",
        "Jhansi",
        "Kannauj",
        "Kanpur Dehat",
        "Kanpur Nagar",
        "Kanshiram Nagar (Kasganj)",
        "Kaushambi",
        "Kushinagar (Padrauna)",
        "Lakhimpur - Kheri",
        "Lalitpur",
        "Lucknow",
        "Maharajganj",
        "Mahoba",
        "Mainpuri",
        "Mathura",
        "Mau",
        "Meerut",
        "Mirzapur",
        "Moradabad",
        "Muzaffarnagar",
        "Pilibhit",
        "Pratapgarh",
        "RaeBareli",
        "Rampur",
        "Saharanpur",
        "Sambhal (Bhim Nagar)",
        "Sant Kabir Nagar",
        "Shahjahanpur",
        "Shamali (Prabuddh Nagar)",
        "Shravasti",
        "Siddharth Nagar",
        "Sitapur",
        "Sonbhadra",
        "Sultanpur",
        "Unnao",
        "Varanasi"
    ],
    "Arunachal Pradesh": [
        "Anjaw",
        "Changlang",
        "Dibang Valley",
        "East Kameng",
        "East Siang",
        "Kra Daadi",
        "Kurung Kumey",
        "Lohit",
        "Longding",
        "Lower Dibang Valley",
        "Lower Siang",
        "Lower Subansiri",
        "Namsai",
        "Papum Pare",
        "Siang",
        "Tawang",
        "Tirap",
        "Upper Siang",
        "Upper Subansiri",
        "West Kameng",
        "West Siang"
    ],
    "Andaman and Nicobar Island (UT)": [
        "Nicobar",
        "North and Middle Andaman",
        "South Andaman"
    ],
    "Maharashtra": [
        "Ahmednagar",
        "Akola",
        "Amravati",
        "Aurangabad",
        "Beed",
        "Bhandara",
        "Buldhana",
        "Chandrapur",
        "Dhule",
        "Gadchiroli",
        "Gondia",
        "Hingoli",
        "Jalgaon",
        "Jalna",
        "Kolhapur",
        "Latur",
        "Mumbai City",
        "Mumbai Suburban",
        "Nagpur",
        "Nanded",
        "Nandurbar",
        "Nashik",
        "Osmanabad",
        "Palghar",
        "Parbhani",
        "Pune",
        "Raigad",
        "Ratnagiri",
        "Sangli",
        "Satara",
        "Sindhudurg",
        "Solapur",
        "Thane",
        "Wardha",
        "Washim",
        "Yavatmal"
    ],
    "Chhattisgarh": [
        "Balod",
        "Baloda Bazar",
        "Balrampur",
        "Bastar",
        "Bemetara",
        "Bijapur",
        "Bilaspur",
        "Dantewada (South Bastar)",
        "Dhamtari",
        "Durg",
        "Gariyaband",
        "Janjgir-Champa",
        "Jashpur",
        "Kabirdham (Kawardha)",
        "Kanker (North Bastar)",
        "Kondagaon",
        "Korba",
        "Korea (Koriya)",
        "Mahasamund",
        "Mungeli",
        "Narayanpur",
        "Raigarh",
        "Raipur",
        "Rajnandgaon",
        "Sukma",
        "Surajpur  ",
        "Surguja"
    ]
}

Hello Natesh,
I need GeoJason files of all states and UT'S of India, for a project I am doing. Can you help me, or suggest where can I get them.