Auto reply mail content . Please correct it

Yatin, it depends, if you are trying for a "funky" young message not bad.

But focusing on the English

Thank you for you email I am on planned leave.

I will return to the office on 28th March 2016.

I will respond to your emails as soon as possible.

Regards

Is correct

Now lets break out the issues for discussion.

"I will resume" means what? Normally it means "I will return to doing something" so you would have to "resume cooking" or "resume being in the office". You cannot "resume an office"

"revert back to your mails" revert is an odd little word much used by Americans and one "reverts to" a previous behaviour or state. So, "revert back" makes no sense (a bit like being tall tall) and while this is used in some communications it will look wrong to a fair number of people.

"Mail" is a physical object and since you are discussing email I suggest keep it that way.

Auto reply mail content . Please correct it

Hi,
Thanks for your mail.
I am on planned leave. I will resume work office on 28th March 2016. I will try to revert back to your mails as soon as possible.
For any urgent issues contact me on my mobile.

Regards,
Yatin,
Mo: 1324567890