JEE Main

It depends on you that in which course you want to take admission like:
Animation and multimedia
Writing and journal
Event management
First, check out on the internet which course you want to do then take a decision.

With this score, you will get none of the government colleges, you must try for private colleges.
Here a list of some good private colleges where can get admission:
1. Galgotias University
2. Shiv Nadar University
3. GLA University
4. GNA University
5. Oriental
6. LNCTE
7. RIMT
8. Satra College of Engineering

Yes, there are many colleges which can offer you admissions as you belong to SC category. Keep trying.

Yes, you'll get admission with your JEE Mains rank. Complete the online counselling process. You'll get choices of colleges all over India based on your JEE Mains score.

Always fill the CRL rank.
Admission committee doesn't need category rank they only need general rank and your category details. If the application form has a separate column for category rank, then you may fill it.

If you stay in Delhi, then you have bright chance og getting IIIT Delhi.

It depends on which stream you take. You can take animation and multimedia, writing and journal, and CPL.

Please mention the examination or the college/university name for which you have appeared and got a rank of 35000. It is diffident to answer your question right now due to insufficient information.