This puts me in top 2% in India and top 5% in the world by income. While I am aware that I can get 4-5x this offer in US, I can't demand that offer here because 1. It's not trivial to immigrate to US, unless I am willing to spend 2 years on (another) Masters degree or spend many more on a PhD. 2. It's a supply demand issue, where at some point, they will be willing to hire someone else than pay me 4x more.
For now, I am hoping that after a few years, I'd be able to immigrate without having to first study in west, or having to take the huge financial risk of immigrating first and then looking for a job. If (political) shit hits the fan though, I might get desperate enough to try one of that option.