Owners Venky's have sent the former Malaysia international into Ewood Park after the club's relegation to the Championship last term.
Singh, a TV pundit in Asia, has already caused controversy with comments at a fans forum concerning manager Steve Kean and midfielder Morten Pedersen, which he has since apologised for.
But insists he will he will continue to 'voice an opinion if it needs voicing' as he seeks to turn the club around.
He told The Sun: "I am the owners' representative here and my responsibility has been made very clear right from the outset by the family. They want promotion.
"My 22-year-old son is my go-to man. We were having a chat about this and he said, 'Do you know what you've done? You've walked into the most impossible job in the world!'
"Yes, it's a big, big challenge but the bigger the better. It's better to have tried and failed than never to have tried at all.
"But I have a motto on my Blackberry - it says 'Promotion... or die trying' and that's my only aim at this club."
He added: "I call a spade a spade. I'll voice an opinion if it needs voicing. Had it gone well last season then I would not be sitting here - that's the way it is."
