In a gesture that could touch a chord with thousands of people distressed by the recent heavy rains in Chennai and beyond, Tamil superstar Kamal Haasan cancelled his birthday bash planned for today. Instead, Mr Haasan, who turns 63, will start his day with a visit to a medical camp set up by his fans in Avadi, 20 km from Chennai city, and later head to a south Chennai locality, among the worst-affected due to the recent rains.