While the model-turned-actress has scored several brand endorsements, she has not confirmed a follow-up to her 2011 debut film Rockstar.
An ad industry source told Mid Day: "In Bollywood, an actor's popularity is measured by how many ads he or she has.
"It is interesting to see that while she is yet to sign another film since Rockstar, she already has seven brand endorsements. There are other brands too waiting to sign her."
An industry expert said: "Nargis needs to sign a film quickly before her goodwill for a big film like Rockstar diminishes."
A friend of the actress, however, confirmed she is currently discussing several film projects, saying: "Nargis is in talks with a few directors and producers. There will be an announcement very soon."
Fakhri first came to public attention when she appeared on America's Next Top Model in 2004.
She was reportedly dropped from the action film Khiladi 786 for being "too beautiful" to play lead actor Mithun Chakraborty's sister.
The 32-year-old has said that acting happened by accident when she read the script of Rockstar.