As you want to get the details of career after the course of B.Sc Mathematics so here it is for you:

Pure mathematics offer opportunities in

Software
Insurance
Market research
Education
Securities
Banking sector etc.

Applied Mathematics provide career opportunities as

Economists
Engineers
Computer Scientists
Physicists
Technicians

Career Opportunities after B.Sc Mathematics:
These sectors are given below

Software
Insurance
Market research
Banking sector

Some of those exams are given below

Tax Assistant exam
Statistical Investigator exam
Grade III & Compiler Exam
Combined Graduate Level Exam