On March 22, 1957, India, under Pt Jawaharlal Nehru, adopted the Saka Era Calendar (the Indian National Calendar) to be used alongside the Gregorian system, after unifying roughly 30 regional calendars. "This was a conspiracy to erase India's Sanatan culture," BJP MP Nishikant Dubey said. "Our children no longer even know about full moon, new moon, Ekadashi, eclipses," he added.