Organization is NESCOM(MTC)
I gave mechatronics test and even though i dont remember exact questions but here are the topics:
Control systems (stability, gain etc conceptual questions)
little bit of basic electronics
electronics (amplifiers, bit of transistors, filters, microcontrollers, pwm)
some mechanical questions such as moment of inertia of different types of bodies
some thermo questions such has PV diagrams, efficiency of simple turbine etc

Overall the test was not very difficult but I gave it without any preparation