Visitors can book tickets or inquire further by contacting the TGTDC Central Reservation Office at 9848126947. Hyderabad : Telangana Tourism Development Corporation (TGTDC) has opened a state-of-the-art Multimedia Laser Show and Musical Fountain at Sanjeevaiah Park, offering tourists a new evening entertainment destination along the banks of Hussain Sagar.Developed at a cost of ₹49.