This very technical article concludes that being bilingual is an advantage. So, how about someone who is multilingual?
According to Census of India of 2001, India has 122 major languages and 1599 other languages. However, figures from other sources vary, primarily due to differences in definition of the terms “language” and “dialect”. The 2001 Census recorded 30 languages which were spoken by more than a million native speakers and 122 which were spoken by more than 10,000 people.
Almost all urban Indians will speak at least two languages and quite a few will speak at least three, the third being English.
I can fluently speak read and write four languages and converse quite comfortably in three others. This came about primarily because of my career having been in sales in transferable conditions and I also was blessed to have been able to see every corner of my mother land, often in depth including visits to rural parts.
There are many like me in India and I am sure that all of them will agree with this: