We, women, endure a lot of pain in our life and menstrual cramps are the most common and regular one. They can be really painful at times. Our mothers and grandmothers used to advise us to drink hot milk or put a hot water bag on our abdomen to get relief from the pain. Thinking about the misery of women a few students of Indian Institute of Technology, Delhi invented a period pain relief roll on. The IIT-Delhi incubated startup Sanfe launched the ‘Sanfe Period Pain Relief Roll On’ on the occasion of International Women’s Day on Friday. Archit Agarwal and Harry Sehrat, students of B.Tech developed the product, with a little help of Srinivasan Venkataraman, a professor of the same institute. The roll-on is an essential oil-based formula which is to be applied on cramp effected areas. The bottle comes in the size of 10 ml and it will last for 3 months. The product has been chemically tested and approved by the FDA and it has no side-effects.