Mamata Banerjee has stated that the door is open and Congress can make exit from the Government. The brave state congress leaders are now saying, TMC should leave Central Government. Mamata Banerjee truly epitomizes extremely low political culture, comparable to present UP government and ruling political party. Even then the WB Congress leaders are not leaving the ministry for the red-light cars and other facilities.
Mamata is in Politics with a one point program - Eliminate left from West Bengal and become the Chief minister of West Bengal. She is not bothered about the progress of the country, progress of the state or even her own progress in personal life. To eliminate the Left she had to really struggle. She joined UPA, mainly to fight the left in West Bengal so that anti Left vote does not get split. On achieving her objective she is now ready to ditch the Congress. Since she is not concerned about national issues, now after coming to power in West Bengal she has no use for sharing power in center. As for Congress they are interested not only holding power at the center but also in as many states as possible. They would rather piggy back on TMC and try to break the party by luring disgruntled TMC leaders rather than openly ditch TMC and face a street fight with mamta
Your vote on this answer has already been received
Though mamta is threatening congress on alliance but even pm said that problem will be sorted out.it seems congress is at backfoot and only interested in power otherwise should have decided to go for poll.