On July 10, Mr Bishnoi had met Union Home Minister Amit Shah and BJP chief Mr Nadda in Delhi.
Adampur MLA Kuldeep Bishnoi, who was expelled from all party positions by the Congress after he cross-voted in the Rajya Sabha polls, on Sunday met BJP chief JP Nadda and Chief Minister Manohar Lal Khattar and discussed political issues with them.
This was Mr Bishnoi's second meeting with the BJP leadership within a span of two weeks.
On July 10, Mr Bishnoi had met Union Home Minister Amit Shah and BJP chief Mr Nadda in Delhi.
After meeting Mr Nadda and Mr Khattar in Delhi, Mr Bishnoi heaped praise on the two leaders.
"During the meeting discussed current political issues with him," Mr Bishnoi said after meeting Mr Nadda.
On his meeting with Mr Khattar, Mr Bishnoi said he "held an important discussion regarding the current political issues of the state and development work of Haryana".
The 53-year-old legislator was expelled by the Congress from all party positions last month.
Since then, he has been warming up to the BJP.
On his frequent meetings with BJP leaders in recent weeks and possibility that he may switch over to the saffron party, former Haryana chief minister and Congress leader Bhupinder Singh Hooda had maintained that the Adampur legislator is free to take his own decision, but he should resign as an MLA before doing so.
Mr Bishnoi, a four-time MLA and two-time MP and younger son of former Haryana chief minister Bhajan Lal, has been sulking ever since the Congress ignored him for the post of its Haryana unit chief during a revamp earlier this year.
The party appointed Udai Bhan, a loyalist of former chief minister Hooda, as its Haryana unit chief.
After cross-voting in the Rajya Sabha polls, Mr Bishnoi had posted a cryptic tweet saying, "I know how to crush a snake's hood. I do not leave the jungle in fear of snakes."
On his expulsion from the party, Mr Bishnoi had said the Congress has rules for some leaders and exceptions for others. Rules are applied selectively. Indiscipline has been repeatedly ignored in the past. In my case, I listened to my soul and acted on my morals.
The Congress, which is the main opposition party in Haryana, was assured of one Rajya Sabha seat by virtue of the number of MLAs it has in the 90-member assembly. However, Congress candidate Ajay Maken failed to secure the berth after Mr Bishnoi cross-voted, while the vote of an MLA was declared invalid.
BJP's Krishan Lal Panwar and the saffron party-backed Independent candidate Kartikeya Sharma were elected to the two Rajya Sabha seats from Haryana.
Mr Bishnoi and his father Bhajan Lal had floated the Haryana Janhit Congress (HJC) in 2007 after the Congress handpicked Mr Hooda for the chief minister's post following the party's thumping victory in the 2005 assembly polls.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)