Nothing surprising here. This is army doing whatever it can to scuttle further orders, to the extent that DRDO installed a black box to prevent army from sabotaging trials.

Arjun for all it's notoriety is not a bad machine. Comparative trails with T-90 showed Arjun can soundly beat T-90 in most performance parameters despite the odds stacked against it.

Below is a report by Comptroller and Auditor-General of India
(http://en.wikipedia.org wiki/Comptroller_and_Auditor_General_of_India).

http://i.imgur.com/6LE0Qcf.png