Hello there!!
MBM jodhpur are affiliated to Rajasthan Technical University(RTU) kota, so the admission is done by the REAP counseliing form. REAP is the common counselling form for more than 80+ affiliated colleges across Rajasthan. The counselling  is based on the score of JEE Mains. So without JEE mains you can't appear for counselling. As you have stated that you have scored 65879 rank in JEE, so this is approximately equal to 95-98 marks. In colleges like MBM you can't get CSE on 95 marks but in SKIT and JECRC getting CSE branch will depend on the level of competition and some luck.You can opt for CSE as first choice and IT, other branches as other choices. In MBM getting seat wil be easy in other branches and you will probably get a seat in 1 or 2 counselling. Form filling have been started from 30 May 2019 and last date of form filling is 29 June 2019. Academic fees of RTU affiliated colleges is 80k per annum. And these colleges also have a decent placement.

If you have any doubt related to admisiion please let me know in the comments below.