The helicopter has been identified as the Eurocopter EC130. It has a fuel economy of 1.13 km per liter (source). It also has a Turbomeca Arriel 2D engine (source) which uses Jet A1 fuel. The cost of jet fuel in Pakistan is 249.15 pkr per gallon or 65.8 pkr per litre (source).
The distance b/w Bani Gala and Prime minister secretariat is 5.77 km, assuming you go in a straight line. Therefore, if my calculation correct 5.1 litres of fuel was used to travel that particular distance and times that by the 65.8 you get 335.58 pkr for the total flight. Divide that by the distance travelled and you get 58.2 pkr per km.
This comes close to the what Fawad Chaudry stated. Obviously some factors such as weather, idle time and luggage weight have not been taken into consideration for the sake of calculations. The pilots would also have been on a monthly payroll rather than an hourly one.

The distance b/w Bani Gala and Prime minister secretariat is 5.77 km, assuming you go in a straight line. Therefore, if my calculation correct 5.1 litres of fuel was used to travel that particular distance and times that by the 65.8 you get 335.58 pkr for the total flight. Divide that by the distance travelled and you get 58.2 pkr per km.
This comes close to the what Fawad Chaudry stated. Obviously some factors such as weather, idle time and luggage weight have not been taken into consideration for the sake of calculations. The pilots would also have been on a monthly payroll rather than an hourly one.