Prime Minister Narendra Modi pays tribute to the Iron Man of the nation, Sardar Vallabhbhai Patel on his 140th birth anniversary, by celebrating National Unity Day. PM Modi payed tribute to Sardar Patel by flagging off the Run for Unity. Zee News is the highly popular Hindi News channel of India’s largest television network ZMCL. The channel, which has a huge following in India and abroad, has won several prestigious national and international awards. Amongst its popular programs are - Dr.