Which types of the government jobs are available for me after completing B.Tech in Computer Science???

After completing B.Tech in Computer Science you can take part in the competitive examinations carried out by UPSC or State PSCs for different government jobs. You can also appear for the examinations organized by SSC, Defence sectors, railway departments, public sector banks, etc. you can apply for the following types of the posts:

Domain Consultants
Industries Officer (Technical)
IT Manager
Jr. Software Developer
Software Engineer
System Engineers
Team Leads/ Architect
Technology Analyst

Here I am telling you the names of some government organizations where you can apply for the jobs:

Indian Railway under Signal Section
BSNL (Bharat Sanchar Nigam Limited)
ISRO (Indian Space Research Organization)
DRDO (Defense Research and Development Organization)
ECIL (Electronic Cooperation of India Limited)
AAI (Airport Authority of India)
SAIL (Steel Authority of India)
RRB (Railway Recruitment Board)
UPSC (Union Public Service Commission)
CDS (Combined Defense Service)