In a fresh arrest in the sensational Porsche hit-and run-case, the Pune police on Saturday took into custody the mother of the minor accused who ran over two techies in an alleged inebriated state, for allegedly giving her blood sample to swap with that of the 17-year-old boy.

Confirming the arrest of the mother of the minor accused, Pune Police Commissioner Amitesh Kumar said the accident investigation had revealed that the minor's blood sample was replaced with that of his mother. The sample was replaced to prove that the minor accused was not in a drunken condition at the time of mishap. With the latest development, four members from the family of the minor accused — the 17-year-old boy himself, his father Vishal Agrawal, grandfather Surendra Kumar Agarwal and now the mother — have been arrested ever since the mishap took place in the small hours of May 19.

It may be recalled that in the small hours of May 19, the 17-year-old boy – after partying with his friends at a Pune bar -- who had driven off in his Porsche car in his inebriated state at a speed of some 200 kmph and rammed into a motorcycle killing killing Ashwini Koshta and Aneesh Awadhiya (both aged 24 years) who were returning home after a reunion with friends.After her arrest, the minor accused – who is currently in Juvenile Observation Home – was questioned by the police for an hour in the presence of his mother.

Earlier the police had arrested the Dr. Ajay Taware, Head of the Forensics Department, Dr. Shrihari Halnor Halnor, the chief medical officer of the hospital, and a peon for allegedly manipulating the blood sample of the accused.

Dr Taware and Dr Halnor, who have been suspended from their service by the Maharashtra government, have been charged with the alleged “manipulation” of blood samples and destruction of evidence in the case.

The police have recovered Rs 3 lakh during the raid conducted on the homes of Dr. Halnor and another hospital poen Atul Ghatkamble. The money had allegedly been paid by the family of the accused boy for manipulating the blood sample.

Vishal Agarwal – the father of the minor boy -- is being investigated for offences registered under sections 75 (wilful neglect of a child, or exposing a child to mental or physical illnesses) and 77 of the Juvenile Justice Act (supplying a child with intoxicating liquor or drugs.

The boy’s grandfather Surendra Kumar Agarwal has been booked   for allegedly threatening and confining the family driver Gangaram Poojari and forcing him to take the blame for the Porsche car accident on his head in return for a monetary consideration. Poojari is a witness in the case.

Meanwhile, a three-member committee of senior doctors headed by Dr Pallavi Saple, Dean of Sir J. J. Hospital in Mumbai – which was appointed by the Maharashtra government to look into the alleged manipulation of crucial blood sample of the accused boy – has completed its inquiry.