This ISRO page for the HysYS spacecraft says:
HysIS, the primary satellite of PSLV-C43 mission, weighing about 380 kg, is an earth observation satellite configured around ISRO’s Mini Satellite-2 (IMS-2) bus. The primary goal of HysIS is to study the earth’s surface in the visible, near infrared and shortwave infrared regions of the electromagnetic spectrum.
This has recently launched (29-Nov-2018) as PSLV-C43.
It has several images, and I've cropped one below.
In addition to HysYS, the smallsat at the top of the payload holder (folded solar panel facing us) there are several terraced layers below it, with lots of electronics and at least sixteen shoebox-sized enclosutes, about eight of them are the same blue in color but here are silver and gold shoeboxes as well.
At first I would have thought they were all cubesat deployers, but their shapes and sizes are more mixed than I would have expected for that.
Is it possible to explain what these shoe boxes are? If they are there to deploy the thirty commercial cubesats and nanosats, there doesn't seem to be enough of them, and I would expect them to be standardized and uniform in construction and mechanism.