India, Dec. 21 -- A newborn elephant calf, rescued after its mother was killed in a collision with a Rajdhani Express in Assam's Hojai district, died on Sunday morning despite intensive medical care, forest and wildlife officials said.

Seven wild elephants were killed early Saturday when the New Delhi-bound Rajdhani Express rammed into a herd in the Jamunamukh-Kampur section under the Lumding Division of the Northeast Frontier Railway. One of the elephants was pregnant, and veterinarians managed to retrieve the calf alive during a post-accident intervention.

Bhaskar Choudhary, a veterinarian with the Centre for Wildlife Rehabilitation and Conservation (CWRC) near Kaziranga National Park, said the calf was critically injured when it was ...