Kolkata, Mar 07 (ANI): Drawing parallels between a watermelon and the Congress' condition in West Bengal, Trinamool Congress (TMC) leader Dereck O Brien on Monday alleged that the grand old party has formed a 'shameless alliance' with the CPI (M) in the state, which goes to polls next month. He also said that the Congress in Bengal is like watermelon, they are green from outside and red inside. He further attacked the grand old party for not having an alliance in Kerala. With the Congress and CPI (M) yet to formally announce a tie-up for the West Bengal Assembly polls, the final outcome of the discussions for an alliance is likely to be clear by next week.