Hello, Abhijoy. I hope you are preparing well for exams and you are in good health. Since you are a general candidate, it is impossible for you to get chance in any IITs by only securing 50 percentile.

Check out the data given below. The list contains the Opening and Closing AIR Ranks of some IITs in 2020 JEE Advanced:

IIT Bombay – OR – 1, CR – 4880

IIT  Delhi – OR – 24, CR – 5431

IIT Madras – OR – 62, CR – 5319

IIT Kharagpur – OR – 138, CR – 6312

IIT Varanasi – OR – 500, CR – 9805

IIT Roorkee – OR – 294, CR – 7531

IIT Guwahati – OR – 41, CR – 12991

It is important to note that, you have to score at least 155 out of 360 to be in the range of 4700 – 4800 ranking (although these numbers may vary from actual).

In other words, owing to the cutthroat competition, a general candidate must secure at least 89 percentile to get chance in a IIT.

If you want to know your eligibility in various streams of various IITs then check out JEE Advanced 2021 College Predictor : https://engineering.careers360.com/jee-advanced-college-predictor?ici=cp-listing_engineering&icn=JEE-Advanced-College-Predictor

I hope this information is able to give you a clear picture of the status of the competitiveness. I wish you all the best for your career and future.

Thank You.