New Delhi: Bollywood actor and philanthropist Sonu Sood on Wednesday participated in #GreenIndiaChallenge, and planted three saplings, urging citizens of the country to plant a tree. Taking to micro-blogging site Twitter, Sonu shared a picture of him planting saplings and said,Ive accepted #HaraHaiTohBharaHai #GreenindiaChallenge from @SreenuVaitla Planted 3 saplings. Further