I want to forget my close friend

i had a friend and he was very close to me.
now from last 2 weeks he is not receiving a single call of mine.
so I want to forget him

How about your ask him why he is not answering your calls.
It would be really childish and immature for you to just forget him over something like that.

I disagree with Papala. If he's been rejecting your calls for 2 weeks, I don't think it would be childish or immature for you to try to forget him. I think it's healthy. You've done your best to reach out to him. He's made it very clear over the last 2 weeks that he's not willing to put any effort into the friendship. I think it's totally ok for you to move on.

Try keeping yourself busy with other friends or things you enjoy.