"I am not an idiot," said Purushottam Naidu as police officers went around his lavish three-storey home in Andhra Pradesh, taking in traces of what appeared to be gruesome ritual murders. His two daughters were dead, struck with a dumbbell and a trident, blood everywhere. They had been killed allegedly by their mother Padmaja, who was heard in a video wailing at her husband in the presence of policemen: "Why could you not have waited half an hour? If you had kept your faith, our girls would have come alive.''