Hello,

You have not mentioned your category. Here is the cut off in 2020 JoSAA round 6 for admission in to Mechanical Engineering in IIT, Bombay

• Unreserved:1129
• SC:386
• ST:304
• EWS: 289
• OBC-NCL: 768
• PWD: 17

Considering the previous year cut off you need to score minimum 60-65% of total score to have decent chances of getting seat in the preferred IIT and branch if you belong to general category, if you belong to SC/ST you need to score minimum 50-55% of total score, if you belong to EWS/OBC-NCL category you need to score minimum 55%-58% of total score. This is because the total marks for JEE Advanced changes every year, if you belong to PWD category you need to score 40% of the total score or above. This is an estimated score. Cut off also changes every year depending on various factors like number of candidates appeared difficulty level of exam and number of seats available etc.