Here's a list of national parks in India along with the state they are located in:
Bandhavgarh National Park - Madhya Pradesh
Bannerghatta National Park - Karnataka
Betla National Park - Jharkhand
Bhitarkanika National Park - Odisha
Blackbuck National Park, Velavadar - Gujarat
Bori Wildlife Sanctuary - Madhya Pradesh
Desert National Park - Rajasthan
Dibru-Saikhowa National Park - Assam
Dudhwa National Park - Uttar Pradesh
Eravikulam National Park - Kerala
Galathea National Park - Andaman and Nicobar Islands
Gir Forest National Park - Gujarat
Great Himalayan National Park - Himachal Pradesh
Guindy National Park - Tamil Nadu
Gulf of Mannar Marine National Park - Tamil Nadu
Hemis National Park - Jammu and Kashmir
Indira Gandhi Wildlife Sanctuary and National Park - Tamil Nadu
Jim Corbett National Park - Uttarakhand
Kanha National Park - Madhya Pradesh
Keibul Lamjao National Park - Manipur
Khangchendzonga National Park - Sikkim
Kishtwar National Park - Jammu and Kashmir
Kudremukh National Park - Karnataka
Madhav National Park - Madhya Pradesh
Mahatma Gandhi Marine National Park - Andaman and Nicobar Islands
Mudumalai National Park - Tamil Nadu
Mukurthi National Park - Tamil Nadu
Nameri National Park - Assam
Namdapha National Park - Arunachal Pradesh
Nanda Devi National Park - Uttarakhand
Nagarhole National Park - Karnataka
Nagzira Wildlife Sanctuary - Maharashtra
Neora Valley National Park - West Bengal
Nokrek National Park - Meghalaya
Palani Hills National Park - Tamil Nadu
Pench National Park - Madhya Pradesh and Maharashtra
Periyar National Park - Kerala
Phawngpui Blue Mountain National Park - Mizoram
Pin Valley National Park - Himachal Pradesh
Rajaji National Park - Uttarakhand
Ranthambore National Park - Rajasthan
Sariska National Park - Rajasthan
Silent Valley National Park - Kerala
Simlipal National Park - Odisha
Singalila National Park - West Bengal
Sundarbans National Park - West Bengal
Tadoba Andhari Tiger Reserve - Maharashtra
Valmiki National Park - Bihar
Van Vihar National Park - Madhya Pradesh
Wild Ass Wildlife Sanctuary - Gujarat
Note that this list may not be exhaustive and there may be other national parks or wildlife sanctuaries in India that are not included here.