New Delhi, Sept. 29 -- Prime Minister Narendra Modi on Sunday hailed the culture of Bihar, especially the Chhath Puja and the Madhubani painting, as he reiterated his pitch for indigenous products and hailed the Rashtriya Swayamsevak Sangh (RSS) for its century-long commitment to national service. In the 126th episode of his Mann Ki Baat radio broadcast, Modi said Chhath Puja, once a local tradition, is now becoming a global festival and the Union government is working to have it included in United Nations Educational, Scientific and Cultural Organization (UNESCO)'s Intangible Cultural Heritage list, which celebrates living cultural traditions passed down through generations. He urged people to buy swadeshi products this festive season, inc...