Parents thread is here - http://www.canadavisa.com/canada-immigration-discussion-board/parents-sponsership-joine-here-t91654.14265.html
What is your LVO ( Which High Commission ) ?
Check my Signature for Parents Timeline, it will give you an idea about timeline
Is your High Commission - New Delhi? or was in CPP-O?, if New Delhi then it takes about 6 months if everything is OK on the file