Pope Francis, 77, is scheduled to visit Sri Lanka from January 13-15 during which he will held two separate mass, one in Colombo and another in the northwestern region of Mannar.
The Archbishop of Colombo, Cardinal Malcolm Ranjith, asked the government and the opposition to not politicise the visit.
"We hope that the visit will not be disturbed by an election campaign and politicians of both the government and opposition would not use it as a political tool," he said.
When asked whether it would be acceptable if the election is concluded before the visit, the Cardinal said: "It is a decision for the government to make."
Papal visits to countries do not happen during election times as per the Vatican general rule.
Sri Lanka, a mainly Buddhist country, has a 7.5 per cent Christian population whose block vote could be decisive in the event of a close presidential election.
Pope Francis, after his arrival, will travel to the city in an open motorcade. President Rajapaksa would call on the pope the same evening, Cardinal Ranjith said.
The theme of the Pope's visit was titled 'Abide in Love'.
The last papal visit to the Buddhist majority Sri Lanka was in 1995 when Pope John Paul II visited the emerald island in January that year.
