"He led this nation courageously during the Indo-Pakistan war (of 1965) and, at the same time, was very committed to solving other problems.
"I am quite sure that had he lived for a few years more, he could have made significant contributions to this country," the Tibetan spiritual leader said.
He was speaking at the launch of the book, 'Lal Bahadur Shastri: Lessons in Leadership', a biography of the former prime minister which has been co-authored by Shastri's son Anil Shastri and Pavan Choudhary.
Recalling his meeting with Shastri, he said, "I'm one of the admirers of Shastri. I met him when he was the prime minister. He was really a great man. There was a big contrast between his body and his mind! As far as I observed him, he was a very compassionate man."
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On the book that recollects the childhood, adult years and the public life of Shastri, the Dalai Lama said, "This small book may teach important lessons of life to everyone."
"Shastriji's story is one that needs to be told at multiple levels. He has left behind a legacy that is hard to match. When the book is read by millions in India, I am certain it will leave them inspired," Anil Shastri said.
Educationist and columnist Pavan Choudhary described the subject of their book as "the original 'aam aadmi' who lived an unpretentious life and rose to be prime minister despite his humble background and without bending the rules".
The book, published by Wisdom Village Publications, is available at leading bookstores and on online retail. It is priced at Rs 195.