But Lata Walpola and Dharmadasa Walpola broke the South Indian monopoly and became indomitable duo in Sinhala Cinema .
This prompted them to hire Indian singers at a lower charge .
But Lata Walpola and Dharmadasa Walpola broke the Indian   monopoly and became indomitable duo in Sinhala Cinema .
This prompted them to hire Indian singers at a lower charge .