S. 144B : Faceless Assessment-Opportunity of hearing-Adjournment request-Portal closed without communication-Where department, without either accepting or rejecting assessee’s timely adjournment request, closed submission portal, thereby preventing it from filing its reply, subsequent assessment order was passed in violation of principles of natural justice and was liable to be quashed. [S. 143(2), 144B(1)(xiii), Art. 226]