Hello Student,

The placement process usually has 3-4 phases.

In the first phase, the pre-placement phase, training and resume building are done.

In the second phase, campus recruitment rounds take place

The Final Phase involves the company selection and other placement formalities

For further information, you can click on the two links given below

Link - How B.Tech Students Can Prepare for Job Placements?

Link - How B-schools prepare students for the placement process

Regards.