Mumbai, Feb 12 (IANS): Actor Rana Daggubati has praised his "Ghazi" co-actor Atul Kulkarni and says that without him, the film would have been incomplete.

Rana on Sunday morning took to Twitter to compliment Atul and also said that he has been a "solid pillar of strength" to the "Baahubali" star.

"Sir you have been in every which way been a solid pillar of strength to 'The Ghazi Attack'. 'Ghazi' wouldn't have been complete without you," Rana tweeted.

The forthcoming Telugu-Hindi bilingual drama, which is slated for release on February 17, is based on the mysterious sinking of PNS Ghazi submarine during the 1971 war between India and Pakistan.

Rana plays Lt. Commander Arjun Varma in the movie.

Directed by debutant Sankalp, it also features Taapsee Pannu and Kay Kay Menon. The film is partially based on the book "Blue Fish", penned by the director himself.

The story is about an executive naval officer of the Indian submarine S21 and his team who remain underwater for 18 days. The film also stars late actor Om Puri in a pivotal role.