After putting the Congress in an embarrassing position by reportedly committing to go to the swearing-in ceremonies of Parkash Singh Badal and Akhilesh Yadav, West Bengal Chief Minister and UPA's most troublesome ally at the Centre, Mamata Banerjee, today changed her mind. The Trinamool Congress was reportedly "keen to attend" the swearing-in ceremonies of the Chief Ministers of Punjab and Uttar Pradesh, but will have to miss them for she has to attend the budget session at West Bengal assembly.