However, M-SEC confirmed it is in possession of 76,250 Balloting Units (BUs) and 76,050 Controlling Units (CUs) — the two parts of the EVM system. Additiolly, the ECI had provided it with another 15,000 BUs and 110,000 CUs, each costing Rs.9,200 (BU+CU). But it gave no information on the number of defective EVMs lying with it. When probed further on this, major differences came up in the information provided by the ECI on March 03, 2017 and July 01, 2017 — which points a needle of suspicion towards misuse of EVMs, Roy contended.