Welcome to BP @Ramakanth Gade !
I agree as usual with @Roy N. about the difficulties of wholesaling here in Canada. I was so excited about this concept when I first arrived to BP but alas I've come to realize it's probably not feasible due to all the factors Roy mentioned, plus the fact that we just have a much smaller and therefore tighter market than our US counterparts. I'm in the middle of my first reno & resale, so I found a property that was a great deal but not good enough (nor in good enough condition) to sell it 'wholesale'. Even powers of sale/foreclosures just don't go that cheap up here.
But having said that, it doesn't mean you can't still market to potential sellers...it just won't be as laser-targeted as the list companies can offer in the US. Canada Post can do mailings based on postal code or even streets so there's that tactic; you can send postcards/yellow letters to areas that are most likely to have motivated sellers. In terms of improving targeting, I have heard that you can purchase something akin to a title search here in Ontario through MPAC (or maybe your local municipality) that at least gives you the names of current owners but each search costs about $8 so you don't want to do many of those! Plus these lists don't give you equity numbers, tax arrears, absentee ownership etc that many of the US lists have. There's also the Driving for Dollars tactic that involves a bit more legwork, you can read about that on the BP forums.
For advertising, Kijiji definitely has more traction in our neck of the woods as well. Craigslist is such an ugly interface, I can't understand why people even use it!!
Best of luck Ram!