How Burger Singh has grown after the closure of Mc Donalds

The recent shut down of McDonald restaurants in North India has proved to be a boon for other burger restaurants. Business at Burger Singh, a popular chain of Indianised burger has grown upto 36% at most of the outlets located closer to McD, and on an average about 27% is the overall increase. 
How Burger Singh has grown after the closure of Mc Donalds
 
Burger Singh also did aggressive advertising and promotions to draw this growth and new customers.
 
The company hired a clown like promoter to hand over Burger Singh cards to people around McDonalds. They also did promotions on Instagram.