This community wiki answer to What are some details of ISRO's Gaganyaan Mission currently says:
Crew Module Atmospheric Re-entry Experiment (CARE) was launched on 18 December 2014 at 04:00 UTC. The crew module was separated at the intended height of 126 km and a speed of 5300 m/s. It entered a coast phase during which it performed three axis control manoeuvres in order to ensure zero degree angle of attack at reentry.
The ballistic reentry started from an altitude of about 80 km. At this altitude, the propulsion was shut down. The heat shield experienced temperatures around 1,000 degrees C and the capsule experienced deceleration of up to 13 g.
5300 m/s at 126 km is not a typical reentry condition, it is too slow. Usually reentries are from LEO starting around 7800 m/s with a small deorbit burn of order 100 m/s just enough to get the spacecraft to encounter the atmosphere 180 degrees later. (See answers to How hard do you have to throw something off the ISS to make it deorbit? and also Circular to elliptical orbit delta V requirements)
The difference in kinetic energy between 5300 and 7800 m/s is the ratio squared, or only about 46%. Why so slow? Was there no launch capability to do it at a realistic velocity and therefore kinetic energy to dissipate, or was the capsule not yet ready to dissipate a full reentry's kinetic energy, or did this speed satisfy the specific mission requirements and a more realistic speed would have been less instructive?