Of i get 121 in comedk2019 then can i get cse in msrit or BMS
You admission im Computer Science Engineering in MSRIT or BMS depends upon your rank in COMEDK-UGET. Well, according to the marks vs rank in 2018, the rank on 121 marks was around 4k-5k. Whereas in year 2017, the rank obtained on 121 marks was lower than that of rank obtained in 2018. So we can clearly say that rank vs marks differ based on factors like number of students appearing for the examination, number of seats available, difficulty level of the paper etc.
The closing rank for CSE in MSRIT in year 2018 was 1131 whereas the closing rank for CSE in BMSIT was 5702 for general category candidates. So even if we consider the rank vs marks of 2018, you have high chances of getting CSE in BMSIT but again, it depends on the above mentioned factors.
I wish you all the best. For any further queries, ask me in the comments.