Hello Aspirant,
Hope you are doing good.
one can get placements from institute after completing their diploma course.
whether you should get the placement depends on your discretion as ultimately, you are the one who gets the job and if you have any other plans, the also you can sit for the placements. if you got placed, then it will be a security. So, think carefully and decide if you want to sit for the placements.
All the best.