CHENNAI: Police have arrested a 45-year-old pastor for cheating a childless couple of 7.5 lakh promising to help them conceive with special prayers.Police said Jayakumar, 45, of Senneerkuppam, served as a pastor. Ananth, a businessman and his wife Shamila, met Jayakumar in 2010 and told him they remained childless, when Jayakumar promised to perform special prayers for them and collected 7.5 lakh in instalments. Since the couple did not see any result, they demanded the money back which Jayakumar refused, police said.Based on a complaint, the Poonamallee police arrested Jayakumar