Professor Raj Aggarwal was an exceptional individual- kind, polite, personable, knowledgeable, experienced, patient and diligent. I had the privilege of being supervised by him during my PhD degree between 2002 and 2006, and I learned a greet deal from his expertise and guidance. It is with deep sorrow my heartfelt condolences to his family and friends. May God bless his noble soul in heaven and great patience and strength to those who mourn his loss. Sincerely Prof. Jamal Moshtagh 16 Sept. , 2023 …

During the summer of 2014, I was at his lab as a visiting student. Although it was a short time, I learned a lot from him and it was a great honor. Thanks to his kind support, I was able to start my career as a professor in South Korea. R.I.P. professor. …

I am really saddened by the news of Professor Aggarwal passing. I met Raj for the first time in 1987 when he was a lecturer in Bath university and I had just started my Phd in City University with Professor A T Jones. I used the software that Raj had contributed in its development. Our technical discussion continued for many years. I found Raj very knowledgable and helpful. His passing is a loss to power system comunity. My thought are with his family.     …

When I visited the University of Bath in 1996, I met him for the first time. After that, I visited Bath eight more times, and we developed a strong research collaboration. Raj also visited our university three times. While I was only eduacated in the Republic of Korea, Raj resembled a true Ph. D. supervisor to me, despite my status as a short-term visitor at  Bath. I learned a great things from him, including deep knowledge, academic life, and values such as humility and tolerance. Based on his suggestion, I was nomonated as an IEEE Fellow and became the president of the KIEE. During my tenure as the KIEE president, I made efforts to invite him and his wife to Korea. However, due to his eye problem, his visit was delayed, and the ongoing Corona pandemic further prolonged the situation. As a friend and mentor, we shared many stories together. He was an exceptional professor, a skilled engineer, a gentleman. My heartfelt condolences for his family. Professor Raj Aggarwal will always be remembered. Farewell, dear friend. …

So sad to hear the lost of great professor Raj Aggarwal. He was a kind person, helped me a lot with my dissertation during my Msc study in University of Bath. Just want to pay my condolence to Raj’s family. R.I.P. professor. Msc student in Electrical Power System 2009 …

In the mid 1980’s, I was an engineer in GEC Measurements who worked closely with Dr Aggarwal, Prof. Johns and their many researchers and PhD students. At the time Bath University was a centre of academic excellence in transmission line protection, and in conjunction with GEC in Stafford helped change how utilities protected electrical networks and kept the lights on. It was always a great pleasure to work with Raj and when I made the transition to academia in 1990, he became an important mentor and friend. It was always a pleasure to meet him at a conference, read his papers, examine his students and chat about the past, the present and the future.                      …

I met Raj for the first time in 1988. After a quick phone call, he invited me to visit Bath. He received me with open arms to start my PhD at Bath University in 1989. During the next four years, I not only had his attention, but we also started developing a strong friendship. Even after having graduated, myself and my wife, Jane (also from Bath), started a beautiful relationship with his family. It was like that over the next 30 years. We did not miss any opportunity of being together either in the UK, Brazil or somewhere else. We had the opportunity to taste his food on almost every occasion. He and Sushma became part of our lives. It is really hard to receive this kind of news. We are never fully prepared. Our condolences to Sushma, the daughters and the rest of the family. We will never forget you and will never be able to thank you enough for everything you did, dear friend. …

I had the great pleasure of knowing Raj since I began as a PhD student at the University of Strathclyde in 1991. He was a supervisor of another PhD student funded by the same company (Reyrolle Protection) and I worked together with the Bath team during my PhD and have visited several times (including my first conference – UPEC – back in 1992). Raj and I remained colleagues and friends over the years – examining each others’ students and working together on conference committees, and Raj was always a great contributor and an excellent researcher. He will be greatly missed and fondly remembered, and I would like to pass on my concolences to all of his friends and family.   …

Raj was a colleague in the DEEE for over 25 years, although his time at Bath goes back much further than that. He was always a very congenial fellow member of the Department, the Staff badminton club and the old Senior Common Room. Very generous, kind and supportive of early career staff, everyone who knew him only ever had positive things to say about him. Although his research was well away from mine, I am aware that he made significant contributions in the area of power systems protection and the work he was initiated continues at Bath to this day. Raj will be much missed, he was such an enduring presence that it is hard to imagine the Department without him. …

You will be missed as an inspiring group leader, a helpful colleague, a close friend, and a passionate badminton partner.  …