@chitrakshi83
Hi Chitrakshi,
Ivy Leagues look at your overall profile along with your grades. So, if you don't have good grades, build a strong profile to get into the ivy league.
Do some good internships, courses, volunteer work, etc., to have a chance at Tier-1 schools.
You can also refer to the below-mentioned blog to know how to strengthen your profile.
(https://ischoolconnect.com/blog/top-10-tips-to-build-your-profile-and-get-into-your-dream-university/)