NSOU - Netaji Subhas Open University

Eligibility Criteria for admission in Master of Social Work:
Candidate must have completed graduation degree with Sociology / Political Science / History / Public Administration / Economics / Anthropology and have studied at least 300 marks in above mentioned subject and passed successfully.

Yes, you can. There is the age limit for bachelor degree but no age limit for post graduation.

Yes. You can apply. Eligibility required for B.Com in NSOU:
*Candidate must have passed 10+2 Examination or equivalent from a recognised board are eligible.
*Candidate must have Passed BPP with PSO from NSOU / Passed 10+2 in Vocational Courses from a recognised board are also eligible.

Find the eligibility:
http://www.wbnsou.ac.in/student_zone/courses/school_of_professional_studies/eligibility.shtml

Hi Arindam,
You can apply for M.Com course at NSOU after completing your B.Com.

Eligibility for MPT in Neurology:
Candidates wishing to pursue the course are required to fulfill the below-mentioned minimum eligibility criteria:
• BPT (Bachelor of Physiotherapy)-completed from a recognized university.
• A minimum aggregate score of 50% is required at the level of graduation.
• A compulsory 6 month internship.

The common Distance MBA eligibility criteria across all the institutes are as follows-
A Graduation degree with minimum 50% marks from a recognised University (10+2+3/4 system). Scores of National and state level management entrance exams like CAT/MAT/XAT etc. Are accepted for most distance MBA courses. Burdwan University also conducts its own entrance test. There is no age limit. Some courses might a require candidate to have relevant experience in the industry.

Kindly refer http://www.wbnsou.ac.in/student_zone/courses/science/eligibility.shtml#sc_eligibility