S. 271(1)(c) : Penalty-Concealment-Arbitration award-dredging contract-Annexed a Note in ITR based on relevant DTAA that said amount was not taxable in India-Levy of penalty is held to be not justified-DTAA-India-Netherland-In computing time limitation for pronouncement of order by Tribunal, nation wide COVID 19 lockdown period was to be excluded. [S. 28(i), 255, ITAT R, 34, Art. 5, 7]