Hi Bharat,

As far as government sector is concerned the BCA graduates can enter Sarva Shiksha Abhiyan, which is a flagship program of the government of India as a teacher on a contract basis. You can also try for computer faculty job in kendriya vidhyala schools. 

Apart from these, many government information technology companies and government companies like BHEL, NSDL, MTNL, and BSNL are hiring BCA graduates. For applying to the jobs in these government organizations, you can visit the website of these companies.

Good Luck!