VBA for insert total line after one group of record

Hello
I wanna a VBA for my excel file with a unique facility…

I have a road master file where we input all necessary information on a road i.e. District Name, Road Name, Length, Senction Cost, Year Block etc… many other.
In this file we store record of many Different District i.e agra, allahabad, unnao, badau, varanasi and soo on…..

I want to VBA my Master Sheet where after end of one district (COLUM B) a "District TOTAL" line insert & sum all COLUMN G TO COLUM K in inserted line..

I think is it possible through VBA …

Example.. AGRA DISTRICT BELOW
DISTRICT TOTAL 11087.00 180.64 573.00 0.00 573.00

Pls help me…

Here my file is attach