"On behalf of the Green Island Cricket Club we offer our sincere condolences to his wife and family.
"We have enlisted the services of Victim Support for Hareesh's team and the Albion men who were playing at the time.
"Thank you to everyone at the ground yesterday. During such devastation I was reminded of what a superb club and community we belong to."
Moyle said the team was in shock.
Gangadharan was understood to be 33 and married with a young child, Otago Cricket Operations manager Tim O'Sullivan said. He played in a team made up predominantly of Indian players.
The club will be required to complete an incident report, but New Zealand Cricket's manager of public affairs Richard Boock said there was no indication it was a sports mishap.
"Early indications are that the player has had a heart attack. It is tragic. Everyone is shattered, both at the club and Otago Cricket. Our hearts go out to his family."
St John ambulance confirmed that they attended the incident with two vehicles.
Green Island is a five-time National Club Champion and current Dunedin champion. It was established in 1930 and its website describes it as having a warm, family vibe.
The club was home to several Black Caps including Glenn Turner, Hamish Rutherford and Brian McKechnie, who faced the infamous underarm bowl in a one-day international against Australia in 1981.