"Otherwise the commission would urge the CBI to investigate the matter," said Raj Kumar Verka, chairman of the Commission.
Sarabdyal Singh, the personal assistant of former Animal Husbandry Minister Gulzar Singh Ranike is on run and wanted by police since the scam of border area grants surfaced three months back.
The case was transferred to VB after the resignation of Ranike few weeks back.
The latest investigation indicate that accused Sarabdyal Singh allegedly embezzled nearly Rs 4 crore by encashing 12 cheques meant for development works in Attari constituency through dummy bank accounts.
Talking to the media here today, chairman of the Commission accused VB of "wilfully slowing the pace of investigation process to extend favour to accused."
Verka described the ongoing investigation as a mere eyewash.