Are the high fees of 15.5 lakh at Great Lakes Chennai (PGDM) worth it?

Everyone has different criteria for considering an institute worthy or not. It all depends on other options you have and your financial background. Your question is subjective so I will try to answer it in the most unbiased way. 

One of my cousins got admission to the Great Lakes PGDM program and because of his weak financial background, he decided to take an education loan for 12.75L. This year he will be completing his 3rd year as a professional and when asked he says that every penny he spent was worth the results he reaped. The highly experienced faculty, top-notch infrastructure, and environment justified the high fees charged by the institute.