Lata says doing album was a special challenge.
"Somewhere they felt that their religious teachings and mantras have so far not been properly articulated. I am happy and relieved that they think my rendition does justice to their sacred teachings," she said.
The process was time-taking but for the 84-year-old it is never too late to learn.
"It wasn't easy, I can tell you that. But getting the pronunciation and diction absolutely right has always been important for me. Early in my career, I had got myself Sanskrit and Urdu teachers who would come to my recordings at studios to sit and teach me the languages during the breaks," Lata said.
"Years later when I recorded the 'Bhagavad Gita' for my brother Hridaynath Mangeshkar, I hired another Sanskrit teacher to make sure that I got the nuances correct," she added.
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Lata feels it's very important to be 100 percent correct in articulating religious and spiritual thoughts.
"Centuries of thoughts go into these teachings. One can't be careless with religious sentiments. I am happy to learn languages through my singing and to polish up my diction. Every artiste remains a student all her life. I am no exception," she said.