Hello Sachin!
When you are filling any online form then there are many column you have to fill.
But some are asking for the compulsory details and some are optional.
The details which are compulsory to be filled are starred by putting a sign in front of them.
While those are unstarred you can skip them as those are optional..
Ok good luck
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile