New Delhi, Nov. 7 -- Trinamool Congress (TMC) Rajya Sabha MP Derek O'Brien on Saturday sought to draw a distinction between the political rivalry between the Aam Aadmi Party (AAP) and Congress in Punjab and claimed the broader Opposition unity against the Bharatiya Janata Party (BJP), asserting that parties fighting the BJP know their respective roles.

In a post on X, Derek O'Brien said the Congress and AAP were contesting against each other in Punjab, making their sharp exchanges natural, but maintained that the "BJP had no reason to celebrate the differences" between the two parties.

"In Punjab, it's Congress versus AAP, fighting it out fair and square. So it is natural the two will come hard at each other. In all this, the BJP have n...