Should I join NITIE PGDIM as a fresher with no work experience? What is the scenario of placements for freshers at NITIE? Should I write the CAT again?

You can definitely join NITIE as a fresher. You will have ample learning and placement opportunities at NITIE. 

NITIE has placements at par with any other B school in India. NITIE is one of very few B-schools that conduct separate lateral and common placement processes for experienced and fresher. Also, NITIE has a magnificent ROI.

In case your academic record is not good and you have no prior work experience then it’s better to join a job and prepare for next year’s CAT. You can’t improve your academics but this way, you can improve your overall profile. 

So, choose the option that suits you best.