Other than Trinity and Caius, Abhijit Guha is also implicitly associated  to two other very distinguished Cambridge colleges - St. John's  and Churchill - both of them had offered him to become a Fellow. Although AG finally joined Caius as a Fellow, he gratefully acknowledges the honoured opportunity simultaneously provided by St. John's and Churchill. Churchill is one of the newer colleges distinguishing in science and engineering, and St. John's  is the college of Paul Dirac. (Dirac was educated at Bristol, was one of the leaders in quantum mechanics and predicted the existence of positron for which he received the Nobel Prize. He shared the Nobel Prize 1933 with Erwin Schrödinger with the citation: "for the discovery of new productive forms of atomic theory".)