Popular actor and Bigg Boss 13 winner Sidharth Shukla died of a heart attack, an official at the Cooper Hospital in Mumbai said. Sidharth was best known for his role in the long running TV show Balika Vadhu. The 40-year-old actor suffered a massive heart attack in the morning. He is survived by his mother and two sisters. Sidharth began his career in showbiz as a model. He made his acting debut with a lead role in TV show Babul Ka Aangann Chootey Na. He later appeared on shows like Jaane Pehchaane Se... Ye Ajnabbi, Love U Zindagi. The actor became a household name with Balika Vadhu. Sidharth also participated in reality shows like Jhalak Dikhhla Jaa 6, Fear Factor: Khatron Ke Khiladi 7. In 2014, Shukla made his Bollywood debut with Humpty Sharma Ki Dulhania.