I want to ask should i do btech in IT or in Comp because my seniors told me that IT courses are being closed in many universities eg-pune

Deepak, surely IT courses have closed in many universities because of less takers and less jobs. So if you're good in PCM go for BTech CS. If you've not been good then take a relook at your career and move to something else like design for instance. If you're creative, you can always consider going