In January 2024, I began thinking about securing a summer internship. Being a second-year student with limited experience, I realized that landing an internship at a major MNC would be challenging. This led me to explore other avenues, including research internships at educational institutions. I discovered two main paths: applying through internship programs organized by various colleges and cold emailing professors directly.
Since most internship programs start in February, I began cold emailing professors at IITs. Unfortunately, most emails went unanswered, and those who did reply either said they were not taking interns or asked me to apply through official programs. Alongside my friends, we created a WhatsApp group to share internship openings and maintained an Excel sheet with professors' details to keep our efforts organized.
As internship program applications opened, I started applying. However, due to eligibility criteria, I couldn't complete many forms. Even for those I did apply to, I received no responses. I continued sending emails, and eventually, some professors asked for interviews. I gave several interviews and waited anxiously for results.
By early April, with no internship in sight and summer vacations approaching, I felt disheartened, especially as many of my friends had secured offers. I reached out to my former professor, Dr. Murli Sariki, for advice. He suggested two options: an industry internship in Vizag or a research internship at IIT Patna. I chose IIT Patna, and he recommended me to a fellow professor there, who agreed to take me on as an intern.
While emailing professors, I received a reply from Dr. Chinmaya K A at IIT BHU. He asked me to write a plagiarism-free report on one of eight given topics. I chose "Fault Detection in Multilevel Converters Using ML" and submitted the report within five days. After a week of waiting, I followed up and was told that the results would take more time as there were many applicants and only one spot available.
Five days later, while sitting in my hostel balcony with friends, I received an email congratulating me on being selected for the research internship under Dr. Chinmaya K A. Overjoyed, I now faced a choice between IIT Patna and IIT BHU. After consulting with friends and considering factors like proximity to home, I decided on IIT BHU.
Varanasi is six hours from my home, and I had to report to IIT BHU on May 15th. We booked a train for that morning, but on checking its status, I saw it was five hours late. After discussing with my parents, we found another train from a different station and managed to reach Varanasi on time.
The reporting process at IIT BHU went smoothly, and I was allotted a room with a roommate, Hemang from Manipal University. The next day, I walked through the tree-lined campus to the Electrical Department, which was about 800 meters from my hostel. The campus, with its serene Vishwanath Temple and open bike policy, left a great first impression.
Dr. Chinmaya K A was welcoming and kind. He asked about my journey and college before discussing the project. He offered me two options: a fully AI/ML-based project or a project related to my branch, "Fault Detection in Multilevel Inverters Using ML." Since I had already written a report on the latter, I chose it.
My first task was to learn about multilevel inverters, which are part of power electronics taught in the third year. I focused on H-bridge and NPC inverters, eventually modeling the NPC inverter in Simulink. Next, I had to create an ML model to detect open circuit faults in the NPC inverter.
Learning ML basics like supervised and unsupervised learning, I created a model that initially had only 36% accuracy. Despite trying various techniques, I couldn’t improve it much. Frustrated, I consulted with seniors from B.Tech, M.Tech, and Ph.D. programs, made corrections, and finally achieved 99.83% accuracy. This success was incredibly relieving.
With 15-17 days left, Dr. Chinmaya suggested learning about DSP (Digital Signal Processing) and implementing my ML model on hardware. Although DSP was confusing, I began learning its basics and preparing for the next steps.
Around this time, my phone broke and stopped working. Living without a phone for weeks was quite challenging, as we are all heavily dependent on it for everything from morning alarms to payments to maps. I had to shift all my activities to my laptop, including setting alarms, making payments, and navigating. I switched from using UPI to cash, which was a significant adjustment. This experience taught me resilience and adaptability in an increasingly digital world.
During this period, I also learned to use Overleaf to write my project report and Google Colab to run the codes for my ML model. These tools were essential for my research work, and mastering them was a significant achievement. Overleaf made collaborative writing and formatting easier, while Google Colab allowed me to run complex ML algorithms efficiently. Additionally, learning to work with the DSP microcontroller to run the hardware implementation of my ML model was a major milestone in my project.
Living alone in a new city was a learning experience in itself. Although I had a similar experience at the start of college, it was different because everyone was new and eager to make friends. At IIT BHU, most of the students already had established friend groups, and many were away on summer holidays, making it harder to connect.
I learned to navigate this challenge by visiting places alone, exploring the beautiful city of Varanasi. The ghats, in particular, left a lasting impression on me. I visited many temples and soaked in the rich cultural heritage of the city. This solo exploration taught me independence and resilience.
One evening, while walking along the ghats, I remember thinking, "This city has a soul, and every corner has a story to tell." Varanasi's beauty, especially its ghats at sunrise and sunset, was mesmerizing. Each visit felt like a new adventure, and I started appreciating the peace and calmness of exploring alone.
This journey taught me perseverance, the value of seeking advice, and the importance of exploring multiple avenues. My internship at IIT BHU was not just about learning technical skills but also about personal growth and resilience. Living alone in Varanasi, making independent decisions, and exploring a new city added a new dimension to my experience.
As Dr. Murli Sariki advised, "It's your life; you should choose what's better for you. Don't think about me or anyone else." These words stayed with me throughout my journey and guided me in making the best decisions for myself.
I returned home with not just technical knowledge but also a sense of accomplishment and confidence. The beauty of Varanasi, especially its ghats, and the challenge of living independently in a new city enriched my internship experience, making it a memorable chapter of my life.