While growing up in a relatively privileged urban joint family in Rajasthan, 49-year-old Arun Gupta always wondered why his family stiffened every time an advertisement for a sanitary napkin flashed on TV. One day, he mustered up the courage to ask his family what “period” was, only to be told to never use that word again, that it was a matter concerning women and that he should not get into it. The memory came back to him years later in his Noida apartment when his 16-year-old daughter came up to him with a question about periods. “Our domestic help had brought her daughter, who was menstruating and had a stain on her clothes. Upon inquiring, my daughter found out from her that she did not use a pad. She came to me asking why, aghast at the very thought that a girl her age could survive her periods without a pad. It got me thinking,” Gupta recalls.