Panchayati Raj minister Mani Shankar Aiyar is getting a lesson in austerity. He has been forced to slash the estimated budget for his Panchayati Raj rally by less than half.First, Aiyar asked the cabinet to clear Rs 165 crore. He was asked to revise the budget and he came back with a figure of Rs 102 crore, still too much said the cabinet.