Got selecting through a written test on campus. Was called to their office in Gurgaon the next day for interviews. There were two round of interviews- the first one involved discussing the approach I followed in solving the questions in their written examination and also solving the ones which I wasn't able to crack, following the hints which my interviewer gave me. This round lasted around 1hr 45mins and they told me I was selected for the next round before the previous one was over. In the next round, a relatively senior guy took my interview and asked my one question (which we covered two semesters later) and led me to the solution. Even though I gave the correct answer, he suggested a simple and better approach. Both the interviews went really well and I was really sure of having cracked it, but never got any further intimation, nor did anyone else who applied in the same profile. I later found they didn't select anyone from this profile the previous year too. Really bad that these guys don't even care to tell you if you haven't made it.

Applied online through the Texas Instruments website. I was invited to have a virtual interview and present a project. The interview lasted 1.5 hours, and then I was invited to an onsite interview. I had two interview on site, both lasted a 1 hour each. I had to present an analog driven project.