S. 12A : Registration-Trust or institution-Method and manner of service of notice under statutory provisions-Notice and reminders issued by CIT(E) were reflected only on portal and not sent to the assessee at its registered email address-Order passed was set aside holding that before any action is taken, a communication of notice must be in terms of provisions of section 282 and rules made thereunder [S. 12A(1)(ac)(ii), 282, Rule 127, Art. 226]