I have got 73percentile... Am i able to get any good college
It would be difficult to provide you the exact information about the admission possibilities as per the score as JEE Main 2019 is being conducted twice by NTA for the first time and rank will be based on the NTA percentile which will be decleared in the month of April.
BAsed on this score the chances are less to be eligible for JEE Advance or to get a seat in NITs also. I would suggest you to appear again for the exam.
If you want to know for JEE Main paper II then let me know.
Good Luck!