Hey Khushbu, you scored 286 marks in NEET and you also belong to OBC Category. Really that will be very helpful to you while taking admission in Government College as some special seats are being reserved for each and every special reserved category. But sorry to say you will not be able to get admission in government colleges in Delhi. You can try for private colleges and you will get a seat there but there might be some difficulty because of a lot varying cutoffs this year. First, check the cutoffs for last year of some private colleges near you then you can compare your marks. 

 I would personally suggest you use the NEET Predictor and explore various colleges according to your category and home state quota and choose the best one for you as this college will be your future lifeline.

https://medicine.careers360.com/neet-college-predictor?icn=neet-clgpd_landing-page&ici=prediction-section_c360-home