I have tried to correct some mistakes, but I am not an expert in English so I hope some members who are expert to help me also
Note: the blue sentence, actually I didn't understand what are you meaning!
My annual vacation is due on 24th April 2015. However, I would like to extend extented my vacation one month because as I have to be present in Chennai at in the 1st Ist week of June 2015 for the school admission of my son and my part time higher study application process. And I have to renew my house My presence is imperative at home as I also need to rectify some defects in my house during this vacation.
I Kindly request you to give grant me 40 days leave effective from 25th May 2015.
I am looking forward to hearing from you.
I assured my best efforts for the organization at all times.
Interested in Language