New Delhi: BJP MP Subramanian Swamy has sought Home Minister Rajnath Singh’s intervention in setting up a court-monitored SIT to take forward the probe into mysterious death of Sunanda Pushkar, wife of Congress leader Shashi Tharoor. In a letter to Singh, Swamy was severely critical of Delhi Police alleging that it was dragging its feet even on elementary steps necessary in criminal investigation when it has been established that poison was found in her body and she died an unnatural death. The Rajya Sabha member said it was the duty of the police to take the probe to its logical conclusion but the investigators are yet to move anywhere near filing a charge sheet.-PTI