Hi Prasanna
Some answers for you.
Q1. When is the right time to do SAP? Should I work for some time more like an year or 2?
The sooner the better, but does depend on your working experience. If you have some basic understandings of business processes then it will be easier to grasp the principals around SAP.
Q2. What are the prerequisites for the training?
Typically none for the introductory courses, the more advanced courses require you to have taken the introductory courses.
Q3. Should I go for certification just after the training?
I worked for 7 years without certification, made no difference in my ability to do the job. Only if a further employer insists on certification should you do it.
Q4. I come from a non-engineering background, will that be a hurdle during my training?
Not at all
Regards
Arden