Sri Lanka's Joint Opposition on Thursday threatened to quit the constitution-making process unless the government announces elections, the Daily Mirror reported.
"There was no point in participating in the process as long as there was no elections in the country," Prof G L Peiris told the paper.
Efforts to amend the constitution faced another set back this week after senior members of the Buddhist clergy said on Tuesday that they unanimously rejected the need for any change or amendment.
The TNA however has urged the government to ensure its promise of constitutional change is fulfilled.