S. 276C : Offences and prosecutions-Wilful attempt to evade tax-Limitation for filing Criminal Complaint-Concealment of income in Foreign Bank-Economic offence-No limitation prescribed-Economic Offences (Inapplicability of Limitation Act) Act, 1974-Evidentiary value of documents —Authenticity of documents would be decided by Trial Court-Powers of High Court-No power to review or alter order once signed-Clarification seeking dispensation with appearance of assessee in Trial Court-Assessee to seek remedy before Trial Court. [S. 131, 148, to quash 250(6) 273A, 276(1), 277,279(1A), Code of Criminal Procedure, 1973, S. 205, 362, 482 Economic Offences (Inapplicability of Limitation Act, 1974, Indian Evidence Act, 1872, S. 78(6)]