Can a book based on Norse mythology become a bestseller in India?

Why not?

I mean- the way things are, pretty much you'd write stands a good chance of going viral and popular among the English-speaking classes of the Republic as long as the following criteria are met.

1- It should pay obsessiance to the fancy concepts of Liberalism, Secularism, and Humanism that our Constitution champions (unless when it's Hindus in Kashmir, Nagaland, Arunachal, Mizoram, Kairana etc etc).

2- It should spare no opportunity to shit upon Hindu beliefs, traditions, and deities, under the guise of “new interpretations” and “women’s rights”- banal nonsense that in any other major faith would've sparked general rioting and nuclear-backed denunciations over half the Earth.

Infact since I'm feeling generous and it's the gift-giving season among certain cultists from the Mleccha lands, here's a free plot.

“Aurangzebus was a Viking, a secular and broad-minded follower of the Profit He-who-must-not-be-painted, was brave, noble, and all those nice things. He was an intersectional feminist who identified as a longboat, and ran a prosperous stall in the neighborhood sex slave market where he oversaw an ever-growing business, driven primarily by his raids on the vicious, inhuman, tyrannical, and blood-thirsty Hindus who'd cruelly taken over the lands the Profit had promised the flying horse Aurangzebus possessed in his dreams. They were also alive, which was a grievous sin in Aurangzebus' god's book- approved by the big colleges and educated classes of the World. And so on and so forth…”

If that doesn't win the Sahitya Academy, I don't know what will.