On a day when protests against the Citizenship Amendment Bill (CAB) kept the whole state fuming, BJP legislator from Rangapara constituency, Rajen Borthakur died on Tuesday night.

Borthakur was 54.

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Borthakur, who won the recent bypolls from Rangapara constituency, was suffering from kidney-related ailments.

He breathed his last at TIMeS Hospital in Tezpur at 10.29 pm.

Assam chief minister Sarbananda Sonowal has condoled the death of Borhtakur.

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Chief Minister Sarbananda Sonowal expressed profound grief on the sudden demise of MLA from Rangapara LAC Rajen Borthakur.

In a condolence message, the chief minister Sonowal said, โ€œI am deeply saddened by the sudden demise of Rangapara MLA Rajen Borthakur. Late Borthakur was committed to the cause of the people and served the State with sincerity and dedication.โ€

โ€œHe left an indelible mark in the sphere of public service with his amiable nature and compassion to the poor and downtrodden.โ€

โ€œHis demise is an irreparable loss and the void created by his passing away would be profoundly felt by the people of the state. I pray for eternal peace of his departed soul and convey my deep sympathy to the bereaved family members,โ€ added Sonowal.

Borthakur won the byelection with a record margin of 49,599 votes against Congress candidate Karthik Kurmi.

While Borthakur secured 78,301 votes, Congress candidate Karthik Kurmi could secure only 28,702 votes in the constituency.

Borthakur, known as a close associate of Assam finance minister Himanta Biswa Sarma, represented Tezpur Assembly constituency from 2011 to 2016 as a Congress MLA.

He along with eight other dissident Congress MLAs had joined the BJP before 2016 Assembly polls.

Borthakur was brought to TIMeS Hospital at around 4.30 pm on Tuesday.

โ€œBut the family members later wanted to shift him to the Hyatt hospital in Guwahati,โ€ said a TIMES hospital official.

โ€œHowever, the family members brought him back from midway and admitted into our hospital,โ€ the official added.

The officer said Borthakur was suffering from heart-related ailments.

Earlier, even before the official declaration of the demise of Borthakur, BJPโ€™s Bokajan MLA, Dr Numal Momin had tweeted: โ€œWe are shocked to hear the sudden demise of Rangapara BJP MLA Rajen Barthakur. A very humble politician of Assam, we lost early. May his departed soul rest in eternal peace.โ€

Also read: BJP MLA Rajen Borthakur dead? No, he is critical