NEWDELHI, April 16 -- The uncertainty over a possible tie-up between the Aam Aadmi Party (AAP) and the Congress for the Lok Sabha polls was heightened on Monday, with Rahul Gandhi appearing to blame Arvind Kejriwal for the failure to seal an agreement, and the Delhi CM in turn accusing the Congress president of not being serious about the alliance.

Speaking about the contours of the discussions for the first time, Gandhi tweeted that the Congress offered the AAP four seats (out of seven) in Delhi and said the doors are "still open" though the "the clock is running out" .

However, Gandhi's remark that "Kejriwal has done yet another U-turn" rubbed the AAP national convener the wrong way. The Twitter conversation began at 5.50pm when Gandhi ...