800 or more years gulami why ?

Our country slavery(gulam) for 800 years - 600years muslims and 200 years britishs, lead our country. It may be longest time period in the whole world.Very few ruler done welfare of people in our country and one of them was Shershah Suri who done some work for welfare of people as making of shershah Suri marg from Kabul to Dhaka,planting of trees and making dharmashala alongwith road.Many times people dies by flood,akal , mahamari and bhookmeri etc every year, but who cares. Interested only in lagan(tax) from commen