The DMK-Congress alliance that has stood the test of time is on the point of cracking up now. A wordy duel between a DMK and Congress representatives over seat sharing ended in both parties coming to breaking point with a deadline of March 7 given to the DMK now for acceding to Congress demands or face a rupture in ties. The DMK is determined not to let the Congress dictate which 9 seats will be given to them but would like to have a say in which candidates Congress will pick as there is some resistance to Karti Chidambaram and Jothimani getting seats. Ajoy Kumar of the Congress left fuming after the meeting and seems determined to inform his high command that the AIADMK offer of 12 seats and campaign funding looks attractive if the DMK offer does not match expectations. Chief Minister MK Stalin was closeted with his senior colleagues on Tuesday (Mar 5) morning at the DMK HQ, but then they had no inkling then that the Congress would get shrill in the seat sharing talks that they had with TR Baalu and his poll seats panel. The issues could get sorted out at the highest levels if any of the senior Gandhis intervene in the seat sharing process, otherwise a 20-year alliance seems to be at risk.