JEE Main Scores

You should score 260+ marks in BITSAT to get admission in BITS.

College of Engineering and Technology, Chandigarh
PEC Chandigarh - Punjab Engineering College, Chandigarh
UIET Chandigarh - University Institute of Engineering and Technology, Panjab University, Chandigarh.

Yes you can get into cbit through JEE Mains rank
for CSE JEE Main AIR is should be around 25000 and they may also consider TS EAMCET rank too
for MECH AIR is 40000
for IT AIR IS 60000.

You can always go for the percentile predictor provided by many websites. Even you can shikhas percentile predictor which ask for your marks and predicts almost accurate percentile.

The admission process in NITs and IITs are done through JOSSA counselling and CSAB counselling. If one qualifies for JEE Advanced they get option to apply for IIITS also. In JOSSA and CSAB you have to give your choice priorities. And then according to your rank you are alotted college. JOSSA also provides two mock rounds in which you can change your priorities. After that counselling process starts in which your college get upgraded in 5 rounds. And in each rounds you will get option to freeze, float and slide. Float is always proves to be best option. If you still did'nt get you desired college you can apply for CSAB counselling.

Hi. Yes, NIOS Certificate is valid in engineering colleges. Candidate who have passed 12th from any recognised board are eligible to apply for admission in engineering colleges. NIOS is recognised by HRD department of Indian government.
Best wishes to you

If you want to take Bihar Student Credit Card then firstly you Should have to go to DRCC Office of your District and then in DRCC office and check the name of your college in list. If you found your college name then you can apply for loan after the 1-2 months of paper work your loan will be sanction as per the grade of your city where are your college. Your Domicile State should be Bihar.

You can get admission in the following colleges:
RK University,
The ICFAI University, Jaipur, Brindavan College,
Dream Institute of Technology, Gandhi Engineering College

With this score, there is nothing waiting for you. It's very hard to get into a government college. But you can apply for private colleges.

33 percentile score in JEE Mains, is quite low, amigo, to be really frank about it. You will have to look for some other options such as state level exams or for some other private universities. If there is JEE Mains once more, you can give that too.