Mega Power Star Ram Charan Tej does his bit of contribution to Lakshmi Manchu’s Memu Saitham. Fresh from the stupendous success of Rangasthalam, Charan took part in the program to be aired on Gemini TV. He sold buttermilk and Soda under hot sun at Annapurna Studios today. The earned income will be donated to a needy underprivileged family.