The 11th Himalayan Echoes festival, which celebrates literature, art and culture of the Himalayan region, began at Abbotsford Estate in Nainital on Friday. Authors, artists and environmentalists from India, Nepal, Bhutan and Europe are taking part in the two-day event. The 11th edition of Himalayan Echoes, a festival of literature, art and ecology, will be held at Abbotsford Estate in Nainital on Oct 30 and 31.