COIMBATORE: It is raining visitors from overseas for the Coimbatore-based Padma Awardee Arunachalam Muruganantham, who innovated in making affordable sanitary napkins. Following the recent visit of the cricketing legend Dwayne Bravo, ambassador of Japan to India, Kenji Hiramatsu and his wife Patricia Hiramatsu, travelled all the way to the textile city to meet the social entrepreneur. The meeting took place …