The greatest delight of a teacher, especially a retired one, is a call from one of their earliest students. I was gifted with that delight recently when a student whom I taught in 1989-91 in Shillong called me and recalled some of my classes. She had got her number from another colleague of mine. The trigger for her remembrance was her visit to Kerala along with her 21-year-old son. The conversation soon acquired a warmth...