At basement you will find luggage deposits rooms a...

At basement you will find luggage deposits rooms as a transit passenger you can drop off your luggage where per bags will cost you 20 Rupies and be careful you should have pad lock on it otherwise they will not receive that.
Ground floor you can find Gust room which serves first come first serve basis, if flight delayed or next connecting flight is long way then take a shower and sleep !!! To have it called Airport manager.

There is no toilet facility at domestic departure area !!!! So you need to go down ground floor and opposite gate 3 there is a paid public toilet where there is no soap or toilet towel. Some food shops around the airport and city center is within 15 mins walking distance if you need to buy SIM card.

There is no SIM card shop inside of outside airport !!!!