Hi lakshit,

   For geting into IIT-Madras or Bombay you just need to pass JEE-Mains that you need to get more marks than the cut-off marks as per your caste.Once you clear JEE-Mains you will be eligible to appear for JEE-Advance which decides in which IIT your are going to land.And for gwetting into IIT_madras or Bombay you need to score good marks in Advance.

For IIT-Madras opening and closing rank for each caste you can visit this link=https://engineering.careers360.com/articles/jee-advanced-cutoff-for-iit-madras

Similarly for IIT-Bombay visit this link=https://engineering.careers360.com/articles/jee-advanced-cutoff-for-iit-bombay

Hope this was helpful.All the best!!!

Hi

IIT Bombay

Following are the cutoff rank

1. Aerospace Engineering

General : 2053

OBC : 1074

SC: 492

ST: 230

2. Chemical Engineering

GENERAL : 332

OBC : 975

SC : 626

ST : 332

3. Civil Engineering 

General : 2544

OBC : 1086

SC: 439

ST : 139

4. Computer science

General : 59

OBC : 37

SC: 14

ST : 9

5. Electical engineering

General : 265

OBC: 177

SC : 76

ST : 45

6. Mehanical engineering

General : 848

OBC : 449

SC : 180 

ST : 67

For IIT madras please use the below link

https://engineering.careers360.com/articles/jee-advanced-cutoff-for-iit-madras