MBA in India

Hello, Greetings for the day.
Regarding information about SRM campus, Kattankulathur, you may visit their website and shall look forward for your counseling call letter from SRM University, Chennai or you may visit their website: www.srmuniv.ac.in

Yes, you are eligible to pursue MBA as the required minimum score in UG for MBA is 50%.

is tula dehradun is good for bba

It depends from one B-school to another. The government funded ones generally charge around Rs 2L as their tuition fees whereas the private ones may charge Rs 15-16L and even beyond.

You are not eligible to seek admission in MBA, as Diploma is not equivalent to graduation degree. You are advised to first do graduation degree in any discipline or subject of your choice to become eligible for MBS admission.

Work experience is not mandatory to seek admission in MBA in any of top 30 B-Schools in India but it's preferable. Students with work experience are able to relate to subjects being taught in MBA and share thier own experience in class discussions, case studies, team exercises etc leading to better learning.
I am sure even in BPO you would have seen and understood ITES company working. You would have fobe critical analysis of your company management functions. BPO experience and learning will come handy to you during MBA classes.