BY A STAFF REPORTER: Trinamool supremo Mamata Banerjee is scheduled to visit Mumbai this time. Bengal Chief Minister Mamata Banerjee is reportedly scheduled to visit Mumbai for three days today i.e. Tuesday. She is expected to meet NCP supremo Sharad Pawar and Maharashtra chief minister Uddhav Thackeray when he arrives here. He is taking up packed programmes. It is not yet known whether an alliance is likely to be formed in the upcoming Lok Sabha polls.