He underlined that employment and business opportunities can open up if latent potential of India's linguistic diversity is tapped by linguistics and computational sciences.
He made the remarks during the release event of 11 volumes of the People's Linguistic survey of India (PLSI).
The PLSI is a comprehensive survey of all living languages of India carried out by a large team comprising volunteers, field activists and experts under G N Devy, the chairman and chief editor of the mammoth study.
"In the process," he said, "We have continued to imbibe and mime the colonial knowledge of languages and linguistics despite having such enormous wealth of theoretical resource in our own intellectual tradition."
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Singh said that a high-level of employment and business opportunities can open up for the trained man-power in these fields if the latent potential of Indian linguistic diversity is tapped by linguistics and computational Sciences.
"This can be achieved through productive intellectual collaborations as the People's Linguistic Survey has done," he said.
"In the absence of such close collaborative and interdisciplinary research in Indian universities, institutes of technology and medical sciences centres, other global players will turn their attention to exploring, documenting and processing the diversity of indigenous and non-scheduled languages in India," he noted.
It may be most timely and appropriate to the global and the national situation to encourage innovative research practices and to work the new trends in languages based science and technology to India's economic advantage, the ex- prime minister said.
The PLSI is published by Orient Blackswan.
As of August 2017, 37 titles have been published covering Jammu and Kashmir, Himachal Pradesh, Punjab, Haryana, Rajasthan, Gujarat, Maharashtra, Karnataka, Tamil Nadu, Bihar, West Bengal, Assam, Meghalaya, Uttar Pradesh, Madhya Pradesh and Chhattisgarh among others.
The volumes for Goa and Sikkim will be released by the end of 2017. All of the 92 titles of the PLSI will be available in print form and as e-books by December 2020.
Talking about the project, Devy said, "India will be only country in the world with such a big repository of world languages. Global Language Survey Report aims to ensure that no language ever slips into oblivion. We aim to complete the entire exercise by 2022.