India

No issues. You can do your graduation in any year. There is no any limit on pursuing graduation. Probably you may not get top colleges, but you can take admission in low-level colleges.

Yes, but computer engineering is a little bit difficult to get. You can try for other branches also.
Rest, it depends upon the cut-off of branches in Thapar.

Your score in graduation should be 50-55% and your selection will be based on your rank.

Yes, the main aim of JCECE is to provide admission to students in various B.Tech colleges of Jharkhand.

Good colleges for forensic science are:
Gujarat Forensic Sciences University,
All India Institute of Medical Sciences,
Lok Nayak Jayaprakash Narayan National Institute of Criminology & Forensic Science,
Lovely Professional University-Jalandhar,
Jawaharlal Nehru Medical College,
Dr. Bhim Rao Ambedkar University-Agra,
IFS India Education Department, Osmania Universit-Hyderabad,
University of Madras, West Bengal
University of Health Sciences, Kolkata
IFS-Mumbai, Nagpur, and Aurangabad,
NIMHANS
Osmania University, Hyderabad,
Dr. Hari Singh Gour University,
University of Madras.

Well dropping is not option. There are also several universities outside delhi one of them is christ university lgautambudh university you must opt for it.

Since you failed to qualify in general category as the cut-off was 74, therefore, you will not be able to get any college like NIT, IIT, IIIT, etc.
You can prefer any state level entrance exam which can lead to government colleges if you score very good marks. Not just cut-off marks. You can also go for private colleges like Manipal University, SRM, Chennai, VIT, KIIT, etc. These are the very good colleges. Choose according to your concern.
Best of luck.

Dear Pratik,
LPU considers improvement marks. One has to submit one's full result (after improvement score) till the last date of admission for taking admission in LPU.
For more information, call on the toll-free no. 1800-102-4431
or
mail on admissions@lpu.co.in