The three times parliamentarian was admitted to the Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh. He had been under critical condition for the past few days.

Earlier on Wednesday evening, former Tripura Chief Minister and BJP, in-charge Haryana Biplab Kumar Deb had reached Chandigarh PGI to inquire about the well-being of the 72-year-old and wished him a speedy recovery.

Condoling the demise, the former Tripura CM took to Twitter and said, "The demise of former Union MoS and Ambala MP Mr Rattan lal Kataria is very sad. Last night itself I met Kataria ji at PGI Chandigarh, his willpower was very strong even in her last moments. My deepest condolences to his family in this hour of grief. May God give peace to the holy soul of Kataria ji and give strength to the bereaved family members to bear this loss."