Invitation letter - Please reply

[newusr]

My parents are going for an interview on April 15th to Mumbai consulate. They are going to ask for a Marathi interpreter since they cannot speak English fluently.
I want to know whether I have to send them the Invitation letter in Marathi, English or in both?
If I send it in both the languages, will the officer ask them why they got the letter in both the laguages?
Also, is it a problem if they have all the other documents in English?

Thanks in advance.

[immihelp]

Send both. One to show to officer and one for your parents to read.