Hmm Shashank , Mathematics and computing is absolutely a different branch than CSE and the curriculum also differs . Probably more focus is on data interpretation and computer based numerical and statistical techniques rather than studying UNIX or Operating systems or Artificial Intelligence. But then , after all this believe me , none not even google , facebook , amazon , direct i etc which are amongst the best recruiters care for anything except for your knowledge of C/C++/JAVA and your stronghold in algorithmic techniques which you will be taught very well . One more thing is that programming language is a thing which no one other than you yourself can teach you . So, keep an aim in mind to become perfect at whatever language you are taught , the algorithms and try to participate on a regular basis in online coding competitions . For your confidence , I have two such people whom I know .. one is Rizwan Hudda , a Mathematics and computing student (M.Tech) at IIT K who has secured a 45 lac pakage in India which is by far amongst the highest and Shaharat Ibrahimpur , a B.Tech mathematics and computing student in IIT R who is amongst the top most coders currently in India . These two excelled because they gave prederence to coding infact rizwan hudda got a job which is required to develop algos based on statistical data .