After Obtaining Take Off Clearance, Flight Operator Calls for Urgent Message

01YouOperator VT ROH go ahead

02ATCVT ROH operator: message from relief ATC centre, urgent med supplies on way to apron, must be uplifted, return to apron

03YouChennai Ground VT ROH cancel takeoff clearance, returning to uplift urgent med supplies, request taxi to apron

04ATCVT ROH Chennai Ground back track runway 32 and vacate on Mike

05YouChennai Ground VT ROH runway vacated taxiway Mike