It's not a no-brainer. Maybe on paper/theory, Rs. 75 lacs is greater than $130K in ppp, but in reality it's not so much.
I have lived in the US earlier also, and because of the better quality of infrastructure and facilities there, a lot of new experiences and products are easily accessible there, that simply don't exist in India or are prohibitively expensive in India.
Plus, on 75 lacs salary or $130K, my annual savings are going to be roughly the same (around Rs. 30 lacs), while enjoying the much better infrastructure and quality of life in the US.
The downside is, that in US, I'll be far away from my parents and extended family who live in India.
That's why it is a conundrum.