As a COMPANY SECRETARY you ll be a link between your shareholders and the company, for any company above a certain cap ( now it is been revised ) it is mandatory to have a company secretary, so i guess you can imagine the potential, of job opportunities. Apart from private companies there a lot of government organizations in look for a CS.
If nothing works out you can start your private practice. The ICSI chapters offers placement assistance to you once you enroll with them.
It usually take around 3 years 3 months to complete the course in the first go.
TO read more about the career,its scope,remuneration,benefits,career map etc log on to http://www.youngbuzz.com/careers/careerdetail/company_secretary
This will surely help.