Cwa or cima

Hi Friends, As I already decided to go for ICWAI...but when I look, there are so many other  Institute of Management Accountants in other part....and they are promoting there certification in India...I know course fee are very high...but opportunities are also very high Globally...so my question is going forward why we go for ICWAI...why cannot CIMA...??? As ICWAI takes on an avarage 3 to 4 years...to clear...that is only when you atleast 6 to 8 hrs daily...but still not sure that result will be positive..but other Institute of Management Accountants has 100% result with 100% job gauranteed...Need all yours expert comments to help make decision, where to go....for all new students...???? Good to go for CIMA or ICWAI..????