Balcony roof

I recently moved to a gated apartment in Bangalore . The flat below me (16th floor) has an extended balcony and decided to the cover the balcony with a enclosure and a roof . This has started creating problems for me as the roof starts just below my balcony . The roof has now become a breeding ground for algae and a collection point for pigeon droppings.It has now become easier for monkeys to enter my apartment and with in two weeks we have several incidents with group of monkeys entering our balcony and creating mess . There are several incidents where the monkeys tried to enter inside from the windows and the balcony. We paid a considering amount of money for the view from the apartment along with floor rise charges so that we can enjoy the view and now I have to wake up to this unpleasant view of pigeon droppings and dirty roof . All the dirt droppings enter my house as soon as i open the window due the the wind . We have written several emails to the builder and he has not responded to our emails since last 5 weeks . Is there any legal option to take this up ?