The Lok Sabha secretariat on Monday reinstated Rahul Gandhi as a Member of Parliament (MP), 137 days after his suspension.
The secretariat's announcement came after the Supreme Court of India on Friday stayed Gandhi's conviction in a case related to his 'Modi surname' remark.
Gandhi, an elected member from Kerala's Wayanad constituency, returned to parliament on Monday morning.
Meanwhile, many Congress politicians want Gandhi to participate in the no-confidence motion discussion in the lower house - the Lok Sabha - that begins tomorrow.
Reacting to Rahul Gandhi's reinstatement, Congress president Mallikarjun Kharge wrote, "It brings relief to the people of India, especially to Wayanad."
Senior Congress parliamentarian Shashi Tharoor called it "a victory for justice and for our democracy".
"With enormous relief, welcome the official announcement of @RahulGandhi's reinstatement. He can now resume his duties in the Lok Sabha to serve the people of India and his constituents in Wayanad. A victory for justice and for our democracy!" he tweeted.
In 2019, Gandhi took a dig at Prime Minister Narendra Modi in an electoral rally and said, "How come all the thieves have Modi as a common surname."
After that, a BJP politician filed a criminal defamation case against him in Gujarat. The state's court found Gandhi guilty, and handed him a two-year sentence along with a fine.