"The rapport Bal Thackeray and Sushma Swaraj shared was affectionate one," Uddhav Thackeray said (File)

Shiv Sena chief Uddhav Thackeray on Wednesday expressed grief over the "irreparable loss" his family suffered following the death of former external affairs minister Sushma Swaraj, whom party patriarch Bal Thackeray had once backed as NDA's prime ministerial face.

Sushma Swaraj, the veteran BJP leader, died in New Delhi on Tuesday after suffering a massive cardiac arrest. She was 67.

Uddhav Thackeray said Sushma Swaraj's death marks an end of a "resplendent era" in Indian politics.

He recalled that his father Bal Thackeray shared an affectionate rapport with the BJP leader.

"A resplendent era in India's politics has come to a halt with the demise of Sushma Swaraj. It is not only the country and the BJP, but the Thackeray family too has suffered an irreparable loss. The rapport (late) Shiv Sena chief Balasaheb Thackeray and Sushmaji shared was affectionate one," Uddhav Thackeray's office quoted him as saying on Twitter.

He noted Sushma Swaraj's rapport with his family remained the same even after his father's death (in November 2012).

Sena MP Sanjay Raut also paid tributes to Sushma Swaraj and recalled that she was Bal Thackeray's first choice as the prime ministerial contender, when current Prime Minister Narendra Modi had still not emerged on the national scene and was active in Gujarat politics.

"Balasaheb saw her as a firm leader. She had thanked him for blessing her. Such was their relationship," Mr Raut told a regional news channel.

The Shiv Sena founder, in an interview to Mr Raut carried in party mouthpiece ''Saamana'' in September 2012, said, "At present there is only one person who is intelligent, brilliant - Sushma Swaraj."