It all started with President APJ Abdul Kalam's visit to the Infosys campus in Mysore on Sunday. As per protocol, the National Anthem was played out but it was an instrumental version. Later Murthy explained that it was done to save his foreign guests from an “embarrassing” position of being silent and while their Indian counterparts were singing it.
I know the meaning of every word in the highlighted parts. But I couldn't understand it.
Could you rephrase it in your own words?
Because his foreign guest would not/do not know the words of the National Anthem, it was not sung but played by the orchestra/band as an instrumental piece. This saved the guests (and their host) from being embarrassed by remaining silent while the Indian guests were singing.
it was done to save his foreign guests from an “embarrassing” position of being silent while their Indian counterparts were singing it.
Remove "and" and the sentence makes sense.