A fire broke out at house of Nithari serial killings co-accused Moninder Singh Pandher at Noida's sector 31 late on Thursday night.
The incident took place at around 11pm when some locals saw fire and smoke emanating from Pandher's D5 residence.
The house was locked and uninhabited ever since Pandher and his servant Surender Koli were arrested in December, 2006.
Three fire tenders were pressed into service. "The entire furniture on the ground floor area was burnt and the entire house was engulfed in smoke. Our fire tenders were immediately rushed from the sector 2 fire station and doused the fire within half an hour," said NK Tyagi, chief fire officer.
The cause behind the fire was still unclear and police said they would investigate the matter.
"We have doused the fire and it seems that thick growth of grass inside the house caught fire somehow. We will definitely inquire and investigate the cause behind the incident," said Dr Pretinder Singh, senior superintendent of police.
Sources suspect that some locals from nearby Nithari village where families of the serial murder victims reside could have triggered the fire.
"This could be an act of outrage against release of Pandher from jail. But the fire has destroyed vital evidence and could be a deliberate act to hide any further clues," said Jhabbu Lal, father of one of the victims.
Pandher's family did not take repeated calls when contacted over the phone.
Nineteen skulls of missing children from Nithari village and nearby areas were found in a drain behind Pandher's house.