for admission in dtu through obc category for outside Delhi student through JEE mains do i need to get obc certificate from Delhi or any other state like jharkhand will work?(i am talking about obc NCL certificate)

Hello aspirant ,
To apply for any Delhi colleges through the OBC qouta , it's must that you must be a Delhi OBC.
If you are OBC from any other state then you will be counted in general category and your CRL rank will be counted to analyse your results.
But if you are a Jharkhand OBC but you have done your schooling from Delhi , then it could be considered.
If you have scored good enough , then you can also check your future college based on your jee score from the link given below-
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer
I hope this helps.
Regards
Madhur