Bengaluru, Aug. 26 -- Karnataka's home minister G Parameshwara on Monday dismissed demands from the opposition Bharatiya Janata Party that the Dharmasthala case be handed over to the National Investigation Agency (NIA), saying the state police were conducting a proper investigation and that there was "no need" for central involvement. With a whistleblower's gristly confession of hundreds of buried bodies unraveling, and forensic analysis showing that the skull he dramatically produced was likely a 40-year-old lab specimen, the state has been under pressure to unearth what BJP leaders and many others see as a conspiracy against the powerful Dharmasthala Manjunatha temple and the Heggade family that controls it. The SIT's investigation too seems to suggest a conspiracy. "Forensic experts confirmed the skull was not genuine evidence of a mass grave," a senior SIT officer said, while asking not to be named. "It was obtained from a research facility, preserved with varnish, and had nothing to do with the claims made in court." The complainant, CN Chinnayya said in his testimony in July, delivered in the presence of his lawyer, that the skull came from a mass burial site in Dharmasthala where he claimed hundreds of bodies were hidden....