As per Geo's claim Heli used by PM is Augusta AW139, here are some facts about it;
Top Speed: 167 KTS (309 Km/hr)
Startup & Takeoff time: 5 Mins
Fuel: 150 Gal / Hr (567 liters / hr)
Distance b/w Bani Gala & PM House: 15 Km (Road) or approx 5 Air miles (10 KM)
Time taken per trip: 5M (startup & takeoff) + 2M (travel) + 2/3M (landing & turnoff)
Time /Trip: 10/11 Mins
Fuel Consumption per minute: 2.5 Gal (9.4 Liters)
Jet Fuel Price: 250 Rupees per Gal (67 Rupees per Liter) (As per the prices available online)
Fuel Consumption per trip: 25 Gal (94.6Liters) or 27.5 Gal (103.4L)
Total cost per Trip: 6,250 or 6,875 Rupees
Total cost per round trip: 12,500 or 13,750 Rupees