The 30-year-old actress, who is currently shooting her debut Hollywood project "xXx: The Return of Xander Cage" in Canada, took to Twitter to express her excitement.
"Extremely overwhelmed to see both my movies #Piku & #BajiraoMastani win almost every award this season!," she wrote.
In "Piku", Deepika played an independent but short-tempered daughter of hypochondriac father Amitabh Bachchan, who won his career's fourth best actor national award for the road drama.
"Piku", meanwhile, also won for the best original screenplay and dialogues. Writer Juhi Chaturvedi shared the award with Himanshu Sharma, who won it for "Tanu Weds Manu Returns".
Expressing gratitude to both the directors, Deepika said, "Thank you #SanjayLeelaBhansali & @ShoojitSircar for the opportunity... #proud #blessed."
"Bajirao Mastani", a big winner at the 63rd National Awards, won awards in six categories, including best director for Bhansali and best supporting actress for Tanvi Azmi.
