I am from India first time in Shanghai. Which is the best location to stay

I suggest you stay near the People’s Square or the East Nanjing Road.
In People’s Square, you can have easy access to , hotels and restaurant and transportation like subway line 1, 2 and 8. At East Nanjing Road, you can also have easy access to accommodations and eatery, and there you can also get the shopping places and scenic spots accessible.