It will mean that new parliamentary elections can be held in January-February, one of the sources, a close ally of the president, told Reuters.
Sri Lanka is facing a major constitutional crisis after President Maithripala Sirisena ousted Prime Minister Ranil Wickremesinghe and replaced him with Rajapaksa and suspended Parliament.
The big fear for India is that Sri Lanka, just off its southern coast and on one of the world's busiest shipping routes, could become a Chinese military outpost.
Sri Lanka is facing a major constitutional crisis sparked by President Maithripala Sirisena's move to oust Prime Minister Ranil Wickremesinghe, replace him with ex-president Mahinda Rajapaksa and suspend Parliament.
Wickremesinghe, whose party dubbed the move a "constitutional coup", refused to vacate his official residence, saying he is the lawful prime minister and that the president has no constitutional right to replace him.
The turmoil in the Indian Ocean nation that has seen one premier refuse to be sacked, and another battle to prove a majority in a parliament that is banned from meeting, has caused major upheaval that Sri Lanka cannot afford.
The tough statement from Jayasuriya came after Sirisena announced on Sunday that parliament would reconvene on November 14, a week later than he had promised.
Sirisena abruptly fired Prime Minister Ranil Wickremesinghe on October 26 and appointed former president Rajapaksa to lead the ruling coalition instead, raising fears at home and abroad that this could derail Sri Lanka's halting national reconciliation process.
Rajapaksa, who is also the Finance Minister, reduced the prices of petrol and diesel by Rs 10 (USD 0.058) and Rs 7 (USD 0.048) per litre respectively as he announced a new series of economic relief measures.
There was confusion since Thursday on the date when the parliamentary deadlock would end as Sirisena had suspended the sittings until November 16.
"India and Sri Lanka enjoy strong bonds of friendship and we will continue to extend our developmental assistance to the friendly people of Sri Lanka," he said.
Among key concerns for investors are Sri Lanka's ability to repay its massive external debt amid the reduced likelihood of continued economic reforms.
The political turmoil started when President Maithripala Sirisena dramatically sacked Ranil Wickremesinghe and sworn in Mahinda Rajapaksa as the prime minister
The tear-shaped island, located off the southern tip of India, has become an arena of tussle between New Delhi and Beijing, which has built ports, power stations and highways as part of its Belt and Road Initiative of trade and transport links across Asia.
Many in India see both Sri Lanka President Maithripala Sirisena and newly-appointed Prime Minister Mahinda Rajapaksa as pro-China leaders. However, New Delhi will be more worried about Colombo’s approach to Lankan Tamils.
Rajapaksa assumed the duties in the prime minister's secretariat which was not used by the ousted prime minister Wickremesinghe, officials from his Sri Lanka People's Party (SLPP) said.
Sri Lankan President Sirisena suspended Parliament a day after sacking Prime Minister Wickremesinghe and naming Mahinda Rajapaksa as the new prime minister
Similarly, Finance Minister Mangala Samaraweera tweeted that "the appointment of Mahinda Rajapaksa as the Prime Minister is unconstitutional and illegal. This is an anti-democratic coup".
Rajapaksa and Sirisena combine has only 95 seats and is short of a simple majority. Wickremesinghe's UNP has 106 seats on its own with just seven short of the majority.
Wickremesinghe and Rajnath Singh discussed issues related to security and anti-terror cooperation between India and Sri Lanka.
Prime Minister Ranil Wickremesinghe will meet his counterpart Narendra Modi on Saturday in New Delhi, the Indian capital, for talks. The two countries have long-standing ties, partly because of cultural and ethnic links with Tamils, many of whom live in the island's north and east.
Marshall said the investigations do not involve a pending five-match one-day series, one Twenty20 match and a one-off test between England and Sri Lanka. The one-day series begins Oct. 10 in Dambula, but the teams will play a two-day tour match on Friday and Saturday in Colombo.
The comments came at a time when the Sri Lankan rupee plunged to its worst level vis-a-vis the US dollar. The rupee has collapsed from 153 to 169 against the US dollar so far this year.
"The former president was away, the former prime minister was away. There was no defence ministry secretary and army commander in the country at the time," he said.
The city-based firm launched the new 2018 Apache RTR 1604V in addition to the existing models in that country.