What happened to Sonu ?

I have been watching on and off and so missed about Sonu ? Noticed that Sonu was not there for Singapore track. Has the actress already quit the show? 

If yes, then how did the cvs end her character in the show ? Like has Sonu gone abroad for higher studies ? Or are they replacing the actress?

The character is only gone for a month, a special study group in Delhi I think. Might be back soon.

For a second I thought meri baat ho rahi hai.. coz co-incindentally my name is Sonu too.

Btw the character of Sonu went to Delhi for some study. But the actress Nidhi Bhanushali played Sonu took a break from the show due to her studies. 

Nidhi Bhanushali aka Sonu has quit show. The makers sent her character to Delhi for a month so they can find replacement. 

So Sonu will be replaced again