Karunarathna YAUD, Siriwardhana SAD, Gunarathna EDTP, Bhargava V, A Comparative study on the efficacy of Shatapushpa Choorna on primary Dysmenorrhoea, Recent Advances and Future Challenges in Ayurveda, Rajiv Gandi South Campus, Barkachcha,banaras Hindu University, Varansasi, India, March 2th 2012