WoTR has an article on India's growing presence in the Middle East, notably the Persian Gulf region, which has some fascinating snippets, but I will cite the first passage which is relevant here, with my emphasis:
There are over 6 million Indian citizens working in the Middle East. That is more than the population of Finland. This provides some context as to why India has now actively started to build its relations further with the region. It also raises the question as to why it has waited for so long to do so.
Link:http://warontherocks.com/2014/04/ind...-persian-gulf/

Elsewhere I have seen articles on the deaths amongst construction workers from the sub-continent on building for the World Cup in Qatar 2022; concern being expressed, not as I recall by their home governments. Here is one BBC report:http://www.bbc.co.uk/news/world-middle-east-26482775