MUMBAI, June 4 -- A four-year-old boy was allegedly beaten to death by his mother's partner and his body dumped in a drain in Bhayander, with the child's mother helping cover up the crime, police said on Monday. Rama Singh, and her lover Shambhu Sharma alias Nepali, were arrested after a post-mortem report contradicted Singh's claim that her son had accidentally fallen into a drain. P4...