The actress will be seen in "I Love NY", in which she will romance Sunny Deol.
Directed by Radhika Rao and Vinay Sapru, "I Love NY" is a romantic comedy that also stars Kangana Ranaut and Navin Chowdhry.
The movie has been shot in New York and Chicago, said a statement.
Tannishtha will be seen dating Sunny Deol in the movie, while Kangana and Navin are paired with each other.
Other than this, Tannishtha has also shot for two cop-gangster stories, "BMW" (Bombay's Most Wanted) and "Monsoon Shootout".
In "Bombay's Most Wanted," the actress plays a bar singer and is paired with Javed Jaafferi and Vijay Raaz. In "Monsoon Shootout", which is being co-produced by Anurag Kashyap, the actress plays a gangster's wife.
As far as international project goes, she wrapped up shooting for Joe Wright's "Anna Karenina" in the northwestern Russian town of Petrozavodsk.
SRK-Gauri anniversary: B-Town stars and their non-filmi better halves
Birthday special: Popular mothers and daughters in Bollywood
Spotted: 'Kaabil' star Hrithik Roshan with dad Rakesh Roshan
'Rock On 2' trailer launch: Farhan, Shraddha enthrall audience with live gig
Photos: Deepika Padukone, Sushmita Sen with daughters at Mumbai airport