Here is something interesting from the Communist Party of India’s (Marxist) draft political resolution that it has come out with after the loss in the Bengal elections:
The [CPI(M)] draft resolution says that approval of the parliament should be must before signing an international treaty. Currently, the Indian government can sign an international treaty under its executive powers. It was done when we signed the WTO treaty in 1995. Approval of the parliament was not taken. Subsequently the bills to amend patents and other laws were brought before parliament; and it was said that not amending the laws would be fatal because the WTO treaty had already been signed. The parliament was presented with a fait accompli and reduced to the position of subordination to the executive. It is necessary to take approval of the parliament to prevent such excesses on the part of the executive in future.
You can read an analysis of the whole resolution (which, unsurprisingly, is quite anti-globalization) in a Tehelka report by Bharat Jhunjhunwala here.