Speaking to Digital Spy, the Bollywood star's former publicist Dale Bhagwagar said that Deana lacks "the Shilpa effect".
"I understand that many Asians as well as Britons are expecting Deana Uppal to be the next Shilpa Shetty, but they are two different personalities," said Bhagwagar.
"Shilpa was an epitome of goodness and a great forgiver. At the same time, she was a righteous fighter and a survivor beyond comparison."
The PR guru said that it would be difficult for Deana to do as well in the programme as his celebrity client.
"Considering the volatile situation most housemates face in Big Brother, it will be an extremely uphill task for Deana to match that charisma and what I may take the liberty to term as 'the Shilpa effect'," he added.
Bhagwagar went on to add that the only parallels that exist between Deana and Shetty are in the controversies that surround them.
"Conor McIntyre ranted to his fellow housemates about Deana after she failed to finish eating her chosen dish in the 'Confusing Cusine' task.
"If you remember, Jade's argument with Shilpa too began over food, when Jade Goody refused to eat the chicken Shilpa had made, and both resulted in a huge amount of complaints to Ofcom," he explained.