Set-off of refunds under Section 245 requires prior intimation and an opportunity to reply before any adjustment. Adjustment of refunds against outstanding demands must follow the procedural safeguards under Section 245: CPC, Bengaluru issues prior intimation; the assessee may file a response to the Assessing Officer named in that intimation; the Assessing Officer must examine the reply and, if an adjustable demand is found, communicate findings to CPC, Bengaluru, which will then process the refund and effect any adjustment.