It consisted of four rounds.

First was an online test with 60 aptitude questions (20 each in Quant, Logical Reasoning, and Verbal) to be completed in 60 minutes. This was followed by 25 questions from Digital and Analog Electronics to be done in 45 minutes. The test was quite easy; speed and accuracy were important. Approximately 50 aptitude and 15 technical correct answers were enough to get shortlisted.

Then came two rounds of technical interviews. Questions were from basic digital electronics, such as CMOS, Multiplexers, Static Timing Analysis (STA), and Finite State Machines (FSM).

The final round was HR.

What will happen if N-MOS and P-MOS in a CMOS inverter are swapped?