"It will be done in a day or two. The committee will be announced in a day or two," External Affairs Minister Pranab Mukerjee tersely told reporters here on the sidelines of a conference of Editors from India, Brazil and South Africa.
Asked whether Singh and Gandhi would be members of the committee, he merely said "let us wait and see what the composition of the committee will be".
The Left parties were strident in their attack on the UPA government saying "it would have to face the music" if their concerns on the civil nuclear deal were not addressed.
"We will attend the committee meeting with the approach that the issues we have raised would be debated but if the government brushes aside our concerns and goes ahead with its original plan, it will have to face the music", CPI General Secretary A B Bardhan said in Kolkata.
The Left has already made it clear that its top leaders Prakash Karat, Sitaram Yechury, A B Bardhan, D Raja, Abani Roy and Debabrata Biswas would be their nominees in the committee which is expected to be a political one.