Thiruvananthapuram, May 20 (IANS): The Centre will improve the quality and outreach of Ayush services at all levels ranging from primary health centres to AIIMS, union Minister for Ayush Shripad Yesso Naik said here on Wednesday.

Naik said this after inaugurating the National Arogya Expo 2015, billed as the largest fair in complementary and alternative health care.

"The government is approaching Unesco in considering yoga as a subject of Indian cultural heritage," he said.

He said India will sign agreements with other countries to set up Indian alternative medicine centres. So far, Hungary, Bangladesh, Mauritius and Nepal have signed such agreements.

The expo features about 300 stalls from 200 companies, including the Department of Ayush, National Medicinal Plants Board, as well as various state governments that are exhibiting their products.

The expo, that will go on till Sunday, is being organised by the Ayush ministry in association with World Ayurveda Foundation, the Kerala government and the Rajiv Gandhi Centre for Biotechnology to foster the growth of ayurveda, yoga, naturopathy, unani, siddha and homeopathy (Ayush) and popularise it among the common people.