ISI Kolkata has a great placement record. The placement average stays around 100%. As per the trends of last few years, ISI Kolkata placement has an average CTC of INR 17-18 LPA. Some of the major recruiters that participate in the placement drive are Goldman Sachs, Reliance, Deloitte, Walmart, Samsung, etc.
My cousin was a 2019 pass out of ISI Kolkata. Here's a statistical insight on the placement data for M.Tech QROR of the 2017-2019 Batch.
The overall average CTC offered by ISI Kolkata is around 19.80 LPA.