hello..
I hv completed my certification in RHCSA,RHCE. Currently working in Telecom company since june 2013. now wanted to start with linux but other than Telecom because i wanted to go towards cloud computing. basically from where i should start?? a hosting company?? pls suggest

The first suggestion would be for you to stop using text-speak if you want a job. It's "have", not "hv", and "please", not "pls". And if you already have a 'certification', that means you already KNOW Linux, right? Which means you've already 'started' with it.

We can't tell you what you should do, since you don't tell US what you've already done, what your skills are, etc. And saying 'cloud computing' is as broad as saying "auto industry". There are people doing everything from copyrighting ads to welding on a production line, and ALL of them are in the auto industry. 'Cloud computing' could mean anything from physical installations, network installations, switch maintenance, deploying VM's, backups, etc.