The film reunites Esha and Arjun Rampal after their 2012 political drama "Chakravyuh".
"A lot of people see me in the 60's era. And knowing JP sir's love for the country and passion for cinema, I feel honoured to be a part of his film," Esha said in a statement.
"I did 'Chakravyuh' with Arjun, we had a great rapport. And now I'm playing the role of Arjun's wife in 'Paltan'. I'm looking forward to go join the team soon," the 32-year-old actor said.
The actor, last seen in "Commando 2", will start shooting for the film soon.