aircraft duties are 15% of the value of the plane.
a decent used small jet with around 2000km range would cost somewhere around $1m or more:
learjet 35 is a popular plane:
thats roughly 10crore or so.
used small cessnas like 150, 172 etc which can travel from lahore to islamabad would cost around 30-40lacs or so:
bigger multi engine turboprops could cost over 2crore atleast which range about karachi from lahore or more.
cessna 421:
other than that, helicopters are also good for travel. But helicopters are more costly then jets and consume more fuel as well.
a decent used helicopter could cost $1m. agusta 109 is my favourite:
here's something cool:
1980 AERO L-39C ALBATROS Turbine Military Aircraft For Sale At Controller.com
and this baby is all yours for around 2crore!
unfortunately its not super sonic but still.