Rahul Gandhi, Akhilesh Yadav, Dimple Yadav, Hema Malini, Asaduddin Owaisi and Kanimozhi Karunanidhi were among the prominent members to be sworn in on the second day of the first session of the 18th Lok Sabha.
As many as 535 members took oath on Monday and Tuesday with seven yet to complete the process.
Many of the MPs raised "Jai Hind", "Jai Maharashtra", "Jai Bheem" and "Jai Shivaji" slogans after taking oath.
BJP leader Om Birla, who has been nominated for the speaker's post, also took oath on Tuesday.
When Birla, who was also the speaker in the 17th Lok Sabha, came to take his oath, Radha Mohan Singh, who was in the chair, stood up and greeted him.
Birla has been representing the Kota constituency in the Lower House since 2014.
On at least one occasion, the pro-tem speaker reminded members not to deviate from the prescribed oath and read aloud only what was written on the paper they had been given.
Several Opposition MPs took the oath while holding a copy of Constitution.
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