Hello Sujatha

It is difficult to tell you the exact qualifying marks for JEE Advanced as JEE Main exam is being conducted twice for the first time.

However, as per your percentile and category, you might be eligible to qualify for the Advanced exam but this is not clear. Nothing can be said exactly before the results of the April exam.

You can go through the link below and check your expected rank using the Rank Predictor tool-https://engineering.careers360.com/jee-main-rank-predictor

Also, kindly mention your home state then I would be able to help you better about your chances in NITs and also you can use the College Predictor tool to check your probable chances in NITs and other Engineering colleges

https://engineering.careers360.com/jee-main-college-predictor

Good Luck!