Should I even consider applying?

SAT: 1500 M:780 Cr/W:720
SAT 2 math level 2 and chem 800
TOEFL:115/120
AP not offered by school, self studied mechanics and calculus,5 in both
CBSE pcmc
Class 9,10: 10 CGPA
Class 11: 95℅ ( Rank 2 in school)

Taekwondo junior black belt
Won national championship
Writer of science blog
Won art, singing competitions at state level
Math olympiad gold medal in state
Member of MENSA India
Tutored underprivileged students in science and math (1 year)
Taught English to adult females (1 year)
Attended science student exchange in Japan
VP of physics club
MUN
Other hobbies: guitar, harmonica, citizen science projects, etc.

No financial aid reqd.
Intended major: physics

Should I apply to top colleges like Stanford, ivy league , UCB, UCLA?

Your stats are good for the top schools. And, given you’re not looking for financial aid, you have an excellent shot at UCB and UCLA. For Stanford and the Ivies, it will come down to your rest of the profile (e.g. state/national achievements) and essays. If I were you, I would apply and see.