B.Sc in Delhi

Hi Amit,
Please check here for a list of colleges in Delhi:
https://www.shiksha.com/science/colleges/b-sc-colleges-delhi-ncr

Delhi is the best option for pursuing B.Sc and preparation of UPSC.

Yes, you can do so. Since 2013, UGC has approved two degrees simultaneously, one preferably a distance education and other regular one. In your case, B.Sc from SOL and D.Ed are allowed and both will be a valid degree in same time frame.

Apart from DU, colleges for B.Sc are Jamia Millia Islamia, Jamia Hamdard, and IP University. For a regular course in these colleges, one have to pay around 7-8 thousand per annum. IGNOU provide distance education and is equally valid degree that will charge around INR 4-5 thousand per annum.

Try for:
Deen Dayal upadhyaya
Acharya Narendra Dev
Netaji Subhash Institute of Technology

Greetings from Shiksha.
Kindly visit this link for Best Private Institutes in Delhi for doing B.Sc:
https://www.shiksha.com/science/colleges/b-sc-colleges-delhi-ncr

Hi,
You can apply after the merit lists are out but your application won't be considered for the final enrollment till you have cleared the compartment.

Hi,
There so many colleges offering forensic science.

DU is one of the most prestigious universities in India. As seats in university are limited and students from all over India apply for admission in B.Sc, to get admission in university is becoming difficult every year.
The admission process differs slightly in every college affiliated to DU. Admission in B.Sc is based on cut off marks declared by each college.