what will be my rank if I got 120 marks in jee advance 2021and which college i would get
If you are a general candidate then with 120 marks in jee advanced 2021, rhe chances of getting rank under 10000 is negligible or no chance. Because for general category students you have to score minimum of 130 marks ( as per the latest trend ). And also every year the total marks changes and this the cutoff also changes.
So, for getting a college and via jee advanced your score must be around 200 or 210 to get a good college like iit and with scoring about 210 marks it will be good enough to get you a rank under 2000.
So, with 120 marks you cannot get ant iit college.