Former Union minister J P Nadda was appointed BJP's working president during the party's parliamentary board meeting on Monday.
The decision of BJP's highest decision-making body was announced by former party president and Defence Minister Rajnath Singh after the meeting, which was attended by Prime Minister Narendra Modi and chaired by BJP chief Amit Shah.
Shah will remain party's national president.
"BJP parliamentary board met today and it has selected J P Nadda as the working president. He will remain the working president till the BJP's membership drive and organisational elections are over," Singh tweeted.
Congratulating Nadda, Modi tweeted that he "is a diligent 'karyakarta' (worker) of the party, who has risen through the ranks due to his hardwork and organisational skills. Humble and affable, he is widely respected across the BJP family".
Wishing him on being unanimously elected as party's working president, Shah said he had full faith that under Nadda's leadership the BJP would be strengthened further and "we would be able to spread the party's ideology in all corners of the country."