Machhendra Nath alias Baba Pratibhanand, who carried a bounty of Rs 1 lakh by the Delhi Police, was on the run for the last four years, police said.
On Friday around 10 p.m. a team led by Superintendent of Police (City) Akash Tomar arrested Pratibhanand, SSP Ghaziabad PRO S.K. Saxena said.
Pratibhanand is a resident of Beed in Maharashtra.
Bhardwaj, who had contested the Lok Sabha election on a BSP ticket in 2009, was the richest candidate in Delhi, having declared assets worth Rs 600 crore.
He was shot dead at his 34-acre Nitesh Kunj farmhouse near the toll plaza in Gurugram on March 26, 2013. Two or three criminals on a motorbike had shot Bhardwaj dead, Delhi Police said.
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