Kolkata, 7 Feb.: Birla Corporation Limited reported a consolidated net profit of Rs 109 crore for the December quarter, up 87% sequentially, as the Company managed to ramp up sales and scale back operating expenses. The Company’s EBITDA for the December quarter at Rs 395 crore and cash profit at Rs 298 crore represent a year-on-year growth of 160% and 359%, respectively. Total cost per ton of cement production for the December quarter at Rs …