as per the suggestion of Xulfiqar bhai!!
thats the best I could get here in Abbottabad.Good built quality LED brake light. Not v costly!!
P.s, members:) from Abbottabad can PM for a shop which sell decoration items v @ v reasonable rate!! give my reference for further discount!!
Here We Go!!
the light~

Opened:)

Proposed place

threads attached for accuracy

The Final outcome

will post a glowing night pix soon!
Light was not placed along the top edge of the rear glass as suggested by Xulfiqar bhai as that would mean a long wire spiral. Will still see if its possible to change its position but at the moment im happy with it 
