MDMK on Sunday described as 'mere waste' the scheduled visit of an all-party MPs' delegation to Sri Lanka from April 16-22 to assess the resettlement and political process.
"The scheduled visit will not help Tamils in Sri Lanka in any way. It is a mere waste," MDMK chief Vaiko told reporters.
He declined to comment on AIADMK supremo and chief minister Jayalalithaa recently pulling out her party's lone representative from the delegation.
Jayalalithaa had expressed displeasure over the delegation's itinerary and slammed the "anti-Tamil" approach of Sri Lanka as regards rehabilitation of internally displaced Tamils.
The MPs delegation is led by Leader of Opposition in the Lok Sabha, Sushma Swaraj.