The government faces a crucial week as it tries to bridge a widening divide with its communist allies over a civilian nuclear deal with the United States.
The communists, who prop up the ruling coalition in parliament, say they will withdraw their support for the government if it goes ahead with the deal.
The following are key events and meetings planned this week that could decide the fate of the government.
Thursday, July 3: The Communist Party of India (CPI), an ally of the ruling coalition and India's second-largest left party, holds its secretariat meeting. The nuclear deal will figure prominently as the party has been very critical of the government.
Thursday, July 3: The United National Progressive Alliance (UNPA), a coalition of smaller parties, holds a meeting to decide their final stand on the nuclear deal.
The parties, which could hold the balance of power in parliament if the communist parties withdraw, could either decide to support the ruling coalition over the deal or voice their opposition. The UNPA includes the regional Samajwadi Party (SP). The government is trying to persuade SP to join it in parliament if the communists leave.
Friday, July 4: The four communist parties that prop up the ruling coalition in parliament meet to discuss Prime Minister Manmohan Singh's trip to a G8 summit in Japan.
The communists say the trip is an indication the government is planning to move ahead on the deal.
Singh is reported to have said he would only go to the summit if a final decision is made to go with the deal. The left parties say they will discuss the timing of their withdrawal of support.
Saturday-Sunday, July 5-6: Tentative meeting between the communists and the government to decide either to part ways for good or bury the deal.
Monday, July 7: G8 summit in Japan. Prime Minister Manmohan Singh reportedly wants the deal to be finalised before he leaves for the summit.