Hey Dilip,

You mean to say important certificate ( from courses ) which helps you at the time of counselling.

So if you will get in campus placement  then certificate is not improtant but knowledge and confidence.

But if you appear for interview out of campus first of all they will see your deocuments.

You should do:

C with certificate

C++

JAVA

PHP

PYTHON

WEB development

Android development

You should know minimum three language

Internship certificates.