"Unless the Manmohan Singh government rolls back these anti-people measures, it has no right to continue in office," he said, adding that the government did not have any mandate across the political spectrum, even from its alliance partners, on all these issues.
He said that eight parties, including four Left parties, Samajwadi Party, TDP, BJD and JD(S), have called for a nationwide protest day and strike tomorrow on these and other issues. They were also supported by simultaneous strike calls by motor transport and traders' organisations.
Asked whether CPI(M) would move a no-confidence motion against the government, Karat said, "We will review and consult with other parties after tomorrow's protest action and then take a decision."
He indicated that there were several options, saying BJP has also demanded a special session and asked the government to seek a vote of confidence.
While the UPA government has been plunged into a crisis after the announcement by TMC withdrawing from the government and UPA, he said, "After TMC withdraws its Ministers on Friday, certain things will follow. So don't jump to conclusions.... We will take a decision in a few days."