Dear Reena!

IGDTUW , DTU, NSUT are all state government colleges . The fees of IGDTUW is between 1 to 2 lakh while that of NSUT, DTU is around 2-3 lakh. IGDTUW is a girls college , state government always encourage girls education so that might be the reason of less fees of IGDTUW compare to other colleges. However every college has its own rules and regulations and fees structure so they are allowed to decrease the fees for girls.

Best of luck for the future!