This is the list of states and union territories in India. I have visited some of them, I still have to visit a few. The ones I have visited are striked off.

Andhra Pradesh
Arunachal Pradesh
Assam
Bihar
Chhattisgarh
Goa
Gujarat
Haryana
Himachal Pradesh
Jammu and Kashmir
Jharkhand
Karnataka
Kerala
Madhya Pradesh
Maharashtra
Manipur
Meghalaya
Mizoram
Nagaland
Orissa
Punjab
Rajasthan
Sikkim
Tamil Nadu
Tripura
Uttar Pradesh
Uttarakhand
West Bengal

Andaman and Nicobar Islands
Chandigarh
Dadra and Nagar Haveli
Daman and Diu
Lakshadweep
National Capital Territory of Delhi
Puducherry