The anti-narotics cell (ANC) of the Mumbai police has seized mephedrone, cocaine and ganja worth Rs 2.25 crore during raids at four locations in the city, police said on Thursday.

In the first operation, Bandra unit of the ANC conducted a raid at Andheri on Wednesday and apprehended drug supplier Anwar Iqbal Sayyad (41), a resident of Dongri in south Mumbai, with 510 gm of mephedrone worth Rs 1.02 crore, an official said.