BANGALORE, April 12: A Tamil Nadu police team has arrived here in search of Ayesha Begum, alias Sangeetha, her husband Mohammed Ibrahim and other activists of the banned Al Umma, an Islamic fundamentalist organisation. They are wanted in connection with the serial bomb blasts in Coimbatore which took over 80 lives in February. The TN police, in a joint operation with their Bangalore counterparts, searched Basith Sarai, a choultry in Kalasipalayam area, but the search proved futile.