I have a certification in ui ux design, now working as a jr.designer. Do I need to pursue mdes or not ? I am a bit confused ?

I truly do not believe that a master's in design does much for your career, unless for the following reasons:

• you plan on going abroad to do it and get a job
• you plan on getting into teaching
• you plan on doing it from a tier 1 design institution in India like NID

Bonus reasons:

• you miss college and want to still have fun
• you have some extra money to spend

If you're talented, a master's in this industry does not add any weight to your profile (unless you do it from a tier 1, but again this is debatable).

If you're not talented, a master's may add some weight to your profile, for a while, until it stops working and then starts to look bad.