Chennai (PTI): Keen to keep the DPA intact for next Lok Sabha polls in the wake of the Left parties' threat to stay out of any alliance involving Congress, DMK leader and Chief Minister M Karunanidhi has appealed to Left leaders to preserve their ties with both DMK and Congress in Tamil Nadu.

"Let's not disappoint people, for whose interest we forged the alliance," he said at a function attended by Congress and state Left leaders here on Monday night.

He also said the Left should not vent their 'anger' against Congress and DMK in Tamil Nadu and some other states. "Don't show your anger in the north and some other states on Peter Alphonse (Congress MLA and senior leader who was present on the dias)," Karunanidhi said.

"You should look at the common ideology that bound the two parties together. We had vowed not to allow (Communalist) forces in the state after seeing the gory side of the BJP in the wake of the Babri masjid demolition," he said.

Recalling the joint struggle by DMK and Left parties in the 1950s for farmers' rights, he asked them to continue supporting the DMK in serving the downtrodden. "We should not disappoint people from backward and most backward classes."

Karunanidhi's remarks followed the August 7 resolution passed by the CPI-M's state unit stating that its relationship with political parties in the state would be guided by the party's national-level approach of a non-BJP and non-Congress front.

Though the Left has snapped ties with the UPA over the Indo-US nuclear deal, CPI and CPI-M continue to be part of the DMK-led DPA, in which Congress is also a major partner. The Left parties along with the Congress also continue to back the Karunanidhi Ministry from outside.

The DPA had swept the last Lok Sabha elections winning all the 39 seats in the state.