In his condolence message, Kumar described Tiwari as a renowned politician and a social activist and said his death has caused irreparable loss to politics.
Tiwari, who was recently re-elected to the Rajya Sabha, died in New Delhi early this morning after suffering a heart attack.
71-year-old Tiwari had taken oath as member of the Rajya Sabha only yesterday after being elected for the second term. PTI AJK KK
