Complex sentence: Krishnashastry was fluent in many Indian languages including Sanskrit, Kannada, Bengali, Pali, Hindi besides English and German which helped him to work in all these languages and translate some of the great works from those languages to Kannada.
Split into simpler sentences: Krishnashastry was fluent in multiple Indian languages including Sanskrit, Kannada, Bengali, Pali and Hindi. He had a good working knowledge of English and German and this helped him to work and translate some of the great works from those languages to Kannada.