CBI sources said the searches are going at the house of Sarang Akolkar, believed to be a Sanatan Sanstha activist whose name had reportedly figured in the Goa blasts case of 2009, in Pune and one Virendra Singh Tawde in Panvel near Mumbai.
Dabholkar was shot dead by unknown assailants in Pune on August 20, 2013.
After the agency sought permission to do a lie detector test on two Sanstha member, the Sanstha had claimed that CBI was "falsely implicating" its seekers - Hemant Shinde, Nilesh Shinde, Niraj Yengul, Mahendra Sahasrabudhhe, Yashavant Sahasrabudhhe and Krushna Kumbhar.