Hertfordshire Police says it has received new information following allegations of racist abuse in Channel 4's Celebrity Big Brother.
Shetty took 63% of the vote to win Celebrity Big Brother
The force declined to give details, but the Sun claimed notes admitting Shilpa Shetty was subjected to a specific insult were handed to police.
The handwritten note also reportedly describes a song which directed abuse at the Bollywood actress.
Channel 4 said there was no evidence the insult had been used.
The notes were said to have written on the back of a running order for spin-off show Big Brother's Little Brother.
They allegedly also contain an admission that the information could cause more trouble for the programme makers.
Shetty was the focus for a series of confrontations with housemates Jade Goody, Jo O'Meara and Danielle Lloyd.
The nature of the rows provoked over 40,000 complaints to media regulator Ofcom.
A Channel 4 spokeswoman said: "We have not been contacted by the police about this matter or seen a copy of the handwritten note that we understand has been passed to them."
'Lack of education'
Speaking on Sky News, Shetty rejected a suggestion the song allegedly referred to on the note proved there was racism in the house.
"That, according to me, is a lack of education," she said. "It says more about them than me and we still don't know if it's true, so I will reserve judgement."
Pressed by interviewer Kay Burley, she repeatedly declined to condemn her fellow housemates for anything other than jealousy and bullying.
"It's over and done with for me and I truly feel they have had to face so much after they have come out that they have learnt their lesson," she said.
Allegations of missing footage and secret briefings have also been denied by production company Endemol.
Creative director Tim Hincks told Broadcast magazine: "We are not puppet-masters.
"The thing about Big Brother is it's very honest and people may be sniggering behind their cups of tea now, but if there was any evidence of briefing or skulduggery, the audience would spot it immediately."
Also missing was Goody, who has faced the strongest criticism over the behaviour in the house.
She has reportedly been booked into a clinic to be treated for stress.
Her agent John Noel, told the magazine that she had no bookings in the near future.
"Initially it's fair to say that everyone has dropped her," he said. "We don't have anything in Jade's order book at the moment apart from ideas."
O'Meara has rejected the suggestion she was racist and has had support from series runner-up Jermaine Jackson.
He has called on O'Meara to shake off her "shackles" and offered to help relaunch her career - by giving her one of his own songs.
Jackson is also to help launch an anti-bullying campaign aimed at teaching younger children how to resolve their disputes peacefully.