Mahindra & Mahindra Ltd.'s profit beat estimates in the quarter ended December on higher tractor sales, indicating that rural demand is improving in Asia's thirdlargest economy. Mahindra and Mahindra (M&M;) posted a better than expected performance for the third quarter ended December 2017 with profit rising over 17%. The company posted a profit of Rs 1,302.43 crore against RS 1,117.57 crore it posted during the same quarter last year. Revenues were...