LAHORE - President Asif Ali Zardari, who is stationed here in the City for the last three days, has extended his stay for another day. He would now be leaving for India on Sunday (tomorrow) from Lahore.It is an unofficial visit meant only to pay homage to Sufi saint Khawaja Moeenuddin Chishti buried at Ajmer Sharif. The president would leave for India early in the morning and return on the same day. However, on the request of Indian Prime Minister Manmohan Singh, President Zardari will have lunch with him at New Delhi on his way back to Pakistan. Though no specific agenda has been set for the meeting, but the two leaders may take the opportunity to discuss the contentious issues in an informal way.