Software services exporter Tech Mahindra on Tuesday reported a 28% year-on-year rise in its December-quarter profit at ₹1,203 crore. The Anand Mahindra-led company's revenue from operations jumped 15% to ₹8,944 crore as against ₹7,776 crore in the corresponding quarter the previous year. The firm's revenue from its IT service unit was up 14.4% from the year-ago period at ₹8,190 crore.