BCA

The best university to pursue BCA in India is Christ University – Bangalore, based on India Today 2016 ranking. You can also evaluate SRM University and Symbiosis Institute of Computer Studies and Research to pursue BCA.
The eligibility criteria for doing BCA at Christ University is class 12th from any recognized board in India. Students pursuing international curriculum must have AIU approval and must obtain a grade of not less than C or its equivalent. Candidates writing class 12th examinations in March-May 2017 may apply with their class 10th and 12th marks for session 2017-20.
BCA candidates are required to appear for skill assessment test. The skill assessment test consist of logical reasoning, written and communication skill. Those, who clear skill assessment test are required to attend personal interview. Based on skill assessment, test score and personal interview score and academic records class 10th and 12th merit list is prepared.

BCA and BSW leads to two diverse careers, which are difficult to compare. If you want to pursue career in technology, then BCA - MCA is a very good career option with very decent career opportunities in IT industry.
Social work is an academic and professional discipline that seeks to facilitate the welfare of communities, individuals, families and groups. It may promote social change, development, cohesion, and empowerment. Underpinned by theories of social sciences and guided by principles of social justice, human rights, collective responsibility and respect for diversities, social work engages people and structures to address life challenges and enhance well-being.
BSW degree in social work will help you to make impact in society, but it may not have high paying placements. You can pursue BCA from any university, but you must pursue MCA from a top college for meaningful career.

Hello,
Yes, MCA is a good options after BCA.
For being eligible to apply for MCA, you should have mathematics as one of the subjects in class 12th or statistics as one of the subjects at graduation level. If you can fulfill this criteria, then you are eligible for MCA.
I would like to state that the most of the entrance exams are conducted in April or May. The notifications are out in January or February. The combined MCA entrance tests held in India are:
1. NIMCET for NITs.
2. CET Maharashtra for Maharashtra colleges.
3. UPMCAT for most colleges in UP.
4. Andhra Pradesh CET for Colleges in Andhra Pradesh.
5. Orissa state MCA test for all colleges in Orissa.
6. MET for All college under Punjab University.
7. GNDU and PTU in Punjab.
The most reputed universities and colleges offering MCA degree in India are:
1. Delhi University.
2. Pune University.
3. Jawahar Lal Nehru University - New Delhi.
4. IIT – Roorkee.
5. NIT – Trichy.
6. VJTI – Mumbai.
7. Banaras Hindu University.
8. MNNIT – Allahabad.
9. ICSE – Indore.
10. Thapar University.
All the best.