B.Sc

You need to have completed your B Tech or BE in the streams like electronics, electrical, computer Science or mechanical engineering. You need to have aggregate score of 60% and above throughout your career.
Indian citizens who are not more than 35 years of age can apply; however, there is some relaxation in the age limit for candidates from the reserved categories. The candidate can appear in the written test during the final year of B Tech or BE course.

you can go in teaching field by doing b.ed(2 year) after b.SC . and doing master after b.ed will leads to a better post.

B.tech is more valuable in these days

Please visit the following link :
http://shiksha-info.blogspot.in/2012/07/career-options-after-bsc-maths.html?m=1

You have choices in Software development/programing. Also, there are many professional courses are available on IT infrastructure.

yes , for civil services only u need to have graduate. pursuing graduation from private college is not a big deal ,all the best for u civil career.
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