SINGAPORE - City Harvest Church's former fund manager on Monday accused founding pastor Kong Hee of lying to the court over the level of control he had over the Crossover Project, which involved using his wife's secular music as an evangelising tool.

"That's a lie," replied Chew Eng Han, when Deputy Public Prosecutor Christopher Ong brought up the claim by Kong that he had no role in deciding the finances for Ms Ho Yeow Sun's music album project.

While being cross-examined by the prosecution, the 54-year-old Chew did not hesitate to cast doubt on the veracity of a series of claims Kong made when taking the stand last year. These included claims that the directors of Xtron, Ms Ho's artiste management firm, had independently decided on the project's budget, and that Kong did not generally make the decisions.

"In other words, he's lied about this position of control over (the) album," DPP Ong also asked. Chew, who quit the church in 2013 after 18 years of service, replied: "Yes".

The Crossover project lies at the heart of a long-running criminal case involving six of the megachurch's leaders. They have been accused of misusing some $50 million of church funds to boost Ms Ho's music career, and then orchestrating "sham" financial transactions to mask the alleged wrongdoing.