The Mumbai police's crime branch has arrested two persons with Ambergris or vomit of whale worth Rs 5.91 crore from suburban Bhandup, an official said on Thursday.

Acting on a tip-off, officials of the crime branch''s unit-7 laid a trap and nabbed Surendra Chotto (39) and Yogesh Chavhan (37), who had come to sell Ambergis on the Eastern Express Highway on Wednesday evening, an official said.