Two people were arrested in Mumbai for allegedly posing as Narcotics Control Bureau officials and making an extortion demand of Rs 20 lakh from a woman, who committed suicide in distress, police said.

The arrests of Suraj Mohan Pardeshi (38) and Pravin Raghunath Walinbe (35) took place on December 24 after a call was received a day earlier by Amboli police that a woman was about to end her life, an official said.