hi,

yes, you are eligible to take admission in b.com after passing 12th from science stream, marks criteria is you need to have overall percentage of 60% in 12th course and have 60% marks in mathematics. this is applicable for general category students,

there is various opportunities after clearing bcom,

Certified Management Accountant (CMA)

Chartered Financial Analyst (CFA)

Financial Risk Manager (FRM)

investment banking

business analyst