Lowballed by Google India, UXE 5 YoE, need advise

Hi helpful folks, So here is my situation: I just received an offer from Google for a UXE. I am psyched, but the numbers are way too low I think. Regarding the interviews, I didn't bomb the technical ones. Rest interviews went well. Also, I was told by the HR that it's a borderline case and hence L3 Experience: 5 Years Offered Level: L3 Base: ~15L INR Equity: ~12.5L INR PS: I am currently earning 30L+ base at a startup. A few questions: + What's the salary range for an L3 in India? + Will the HR negotiate considering I don't have any competing offers? + How is the Google Bangalore office in terms of projects and work at UXE? + My current work isn't bad at all. Does it make sense to leave at 50% pay cut? + If I perform really well, how much time will it take to get to L4?