Anil Kumble is the highest wicket taker for India in Tests and ODI.
Shane Warne is the highest wicket taker in the world at present.
Wasim Akram is the highest wicket taker in pakistan
Its Anil Kumble with 619 wickets, he is also the 3rd highest in the world.
Dairk Nanis of Australia is the highest wicket taker in t20 world cup 2010.
Graeme Swann of England took 22 wickets in just 4 tests to be the leading wicket taker in 2009.
Muttiah Muralitharan of Sri Lanka