If you want to learn a lot abt Indian history and mythology the fastest and easiest way is to read Amar Chitra Katha comic books
They have all the major Kings, Sultans, Mughal rulers, revolutionaries stories in short form
They also have some mythological comics
I think u can get them at Amazon
or u can try bookstores when u visit India
If any of those stories interest u and you want to learn more abt a particular King or leader then just read his or her Wikipedia
In fiction, best Hindi writer is Premchand, his short stories are the best
There are a lot of famous Bengali authors like Saratchandra Chattopadhyay (who wrote Devdas), Bibhuti Bhushan Bandopadhyay (who wrote the Apu Trilogy, 1st one was Pather Panchali) and of course Rabindranath Tagore's novels and short stories
You can get all of these in translation
If you like detective stories, then Sharadindu's Byomkesh series, Satyajit Rays Feluda series will interest u...also available in translation
Indo American writers, I really like Jhumpa Lahiri, I feel her words, seems like shes writing my feelings and those of our kids who grow up in US
Also Chitra Divakaruni wrote a few good novels, try them
will post more when I remember