JEE Main Scores

Minimum eligibility criteria for all courses.
The candidates seeking admission in the B.Tech programs need to complete their 10+2 from a recognized board, with a minimum of 60% marks in Physics, Chemistry and Mathematics/Biology being their main subjects. For Delhi region candidates: Any candidate who has passed Standard XII from a recognised school located in Delhi with minimum 60% aggregate marks in Physics, Chemistry, Maths, and English is eligible to apply for B.Tech admissions at DTU. For outside Delhi region candidates: Any candidate who has cleared Class XII from a recognised school located outside Delhi with minimum 60% aggregate marks in Physics, Chemistry, Maths, and English is eligible to apply for B.Tech admissions at DTU. The candidates seeking admission in the M.Tech and MBA programmes need to complete their graduation in the same, from a recognized college/university, with a minimum of 60% marks.
To know about the JEE rank visit the link: https://www.shiksha.com/university/delhi-technological-university-23920.

I am answering this question considering that you are from General category, and without any home state quota. As far as you asked only for JEE mains, so I thought you have at least 190 marks in JEE mains to get a good or an average college with a good branch but getting the 220 marks is sufficient for getting a good college with a good branch.
If I consider you from OBC category, then there is a slight difference in all these scenario. For OBC 190 becomes 170 and 220 becomes 200.
Now, if I consider you from SC/ST category, then these 190 marks becomes 115 and this 220 marks becomes 140.
Don't think about all this and prepare well for the JEE mains.
And feel free to ask anything about your career and opportunities.
Hope you got your answer.