Renowned nephrologist Dr. M.K. Mani was given the 40^th Dhanvantari award for “excellence in medical services” at a function here on Sunday by Union Power Minister Sushil Kumar Shinde.Dr. Mani had been in the field of nephrology for more than 30 years. At present, he is the chief nephrologist in Chennai’s Apollo Hospital.“Dr. Mani has pioneered innovative techniques and new regimen in management of kidney disorders,” Dhanvantari Medical Foundation president and eminent cardiologist Dr. B.K., said by Goyal