Also actor-politicians Hema Malini, Shatrughan Sinha and Manoj Tiwari, members of Bharatiya Janata Party (BJP), were present on the occasion.
Dressed in black shirt and trouser, Salman was spotted sitting next to his father. Looking elegant in a sari, actress Poonam Dhillon was spotted with her million dollar smile while taking her seat.
Hema and her actor husband Dharmendra, and Shatrughan Sinha were seen exchanging pleasantries before the ceremony began.
Bhandarkar was spotted in a black suit, while Bhojpuri star Manoj Tiwari was looking his best in a kurta-pajama teamed with a Nehru coat.
"Company" fame actor Vivek Oberoi too came in to attend the oath-taking ceremony of the country's 14th prime minister.
Legendary singer Lata Mangeshkar was personally invited by Modi for the ceremony, but she had to miss the event due to health reasons. However, she sent a handwritten letter to Modi apologising for not being able to make it to the function.
She wished Modi all the best saying that the people have given the reins of the country in the hands of a great leader and that today is the happiest day for the nation.
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A transition from showbiz to politics has proved fruitful for Smriti Irani, who will now hold an important HRD ministry in the Narendra Modi-led government, which was sworn in Monday at the Rashtrapati Bhavan.