If you get a job in Singapore your employer will process employment pass for you. Usually Singapore companies prefer to recruit local candidates or
you should be available in Singapore for interview. However, few companies recruit from India as well. You need to register in job sites like Monster and choose preferred location to Singapore.
If you are really serious in getting a job in Singapore, perhaps you can come here for a short period (a month or two) and attend interviews. The possibility of job is very high if you are physically available here for interviews.
Use Google to get Singapore consultants list.
Sai Surya, SCJP 5.0, SCWCD 5.0, IBM 833 834
http://sai-surya-talk.blogspot.com, I believe in Murphy's law.