The winter session of parliament in October 2008 came under intense criticism from the Left parties and the BJP to demand a full-fledged winter session instead of what was seen as the UPA to having "scuttled the voice of Parliament" by bringing down the sittings to a record low of 30 days in the year. The tensions between the UPA and the opposition parties became evident at an all-party meeting convened by Lok Sabha speaker Somnath Chatterjee when the leader of opposition, LK Advani questioned the status, timing and schedule of the current session of parliament.
Karunanidhi had said he felt "let down" by the "lukewarm" response of the Centre and had demanded amendments in the resolution on Sri Lanka.
The second one was "establishment of a credible and independent international commission of investigation in a time-bound manner into the allegations of war crimes, crimes against humanity, violations of international human rights law, violations of international humanitarian law and crime of genocide against the Tamils". Karunanidhi said Parliament should adopt the resolution incorporating these two amendments.
The UPA has also been criticised for its alleged involvement in a number of scams such as the Commonwealth Games Scam of 2010, the 2G spectrum case, and the Coalgate scam. Apart from the above-mentioned scams, the UPA has been under intense fire for the alleged doles handed out to the son-in-law of the Gandhi family, Robert Vadra, by different state governments run by the UPA.