Tyagi has denied allegations of any kickbacks.
Swiss-American Haschke is one of the 13 accused named in the FIR filed by CBI which is probing the bribery allegations in the deal.
“Guido Haschke and Carlo Gerosa (both alleged middlemen) managed to send 5.6 million euros through Mohali-based IDS Infotech and Chandigarh-based Aeromatrix Info Solutions Private Ltd to India and kept the remaining amount of about 24.30 million euros received from AgustaWestland with themselves in the account of IDS Tunisia,” according to the CBI FIR in the case.