Hello Aspirant,

With 76 score in JEE mains , your rank will be around 169542-92303. Your JEE mains percentile will be 84.56203931-91.56517945. It is the expected rank and percentile. With this rank it is difficult to get good NITs or IIITs or CFTIs. But  you can try for private colleges. Marks vs ranks varies every year depending on various factors such as number of students, toughness of question paper, performance of the students etc.

Use the below link to get list of colleges that you can get based on your rank :

https://engineering.careers360.com/jee-main-college-predictor?utm_source=qna&utm_medium=jee_cp

check out the previous year's cutoff :

https://engineering.careers360.com/articles/jee-main-cutoff

You can also check out marks vs rank vs percentile from the below link:

https://engineering.careers360.com/articles/jee-main-marks-vs-percentile

Hope this information helps you.

best wishes!