Singapore

Hi Nirupama,
Admissions are competitive and a student's entire profile is evaluated such as academics, work experience, career growth, achievements, etc. Applicants having work experience in the related field have an upper hand. International students must submit GRE scores and TOEFL/IELTS scores as well. However, you wouldn't need a TOEFL or IELTS score as you have studied and even worked in an English speaking nation.
Admitted students at NUS or NTU generally have had GRE scores of above 320 so you must work on it. Your academic grades will also be evaluated in addition to your work experience and GRE scores. If you are interested in a Ph.D later it is good to show your inclination towards research, also a MS degree eventually leads to research oriented work. Publications, research work and any significant contribution etc. will be vital.
Hope this helps.
Feel free to write back for further clarification.

In Canada you will find most of the schools are offering PG certificate which is not a bad deal.Blanche MacDonald Centre is one of the top schools in Canada for graduate studies in Fashion Marketing. Other good options are Ryerson University, Humber College and George Brown College.
In Singapore, you can check MDIS.You will find a number of short term courses - TaF.tc ( The Academy of Fashion Professions).
Fashion industry is huge and scope is abound if you have the right skills. Students generally opt for US,UK France and Italy for fashion studies. Canada allows international students to stay and work for 1 to 3 years. Since you already have sufficient work experience you must bank on your capabilities and skills for a good career ahead. Please check university websites for admission requirements before applying.All the best.

Pritam, you must be very clear of the reason that you want to pursue it for. Do you want to develop your hobby or you want to spend rest of your life doing this? If you want to puruse it seriously - then leave whatever you're doing and pursue learning it passionately till you are good at it. related studies are animation, game design, web design in the newer career areas and fashion, interiors, fine arts, commercial art amongst traditional careers. Wish you the best for your career. Remember, your Career is a resultant of your knowledge combined with your passion and expression ability. If you like this answer you may select it as best answer or press like.