i am not writing the the format...
Dear sir,
this letter intends to bring your kind attention to the unimaginable harassment commuters face in our colony due to frequent power cuts  We know that number of people  rising in the cities is on and that there is no proportional increase in no. of your branch.So,power cuts are bound to happen.But they do not intend to disturb you with things that do not have an immediate solution.
The lights in this very busy colony show a great disregard  for any kind of  power cuts.Lights going now and then,tvs switching off and going going into every corner of the problem.Other colony members playing pranks of ghosts cause a great havoc for the daily people.
  Some of the leading newspapers in the area last day photographs of a police officer pluging out the electric wire.Need i say more?
  We have faith in you and fully understand that there are some dedicated employees in your company who are working day and night to ensure our safety in every sphere.
Thanking you in anticipation,
Yours sincerely,
your name