What is free in this world?
You are wrong
There is a thing by the name of PACANS which is free
PACANS is the largest online educational organization in Pakistan and India
Call 0300-4094094; 0336-5095095; 042-35855791; 042-359633811st Floor Capri Center Firdaus Market Gulberg 3 Lahore29 Sultan Town near University of Lahore Lahore25-2-C1 Main College road Township Lahore