HENRIETTA Marx is credited with the bitter wish that her son Karl "would accumulate capital instead of just writing about it". A century later in 1940, Mrs and Mr Satish Chandra Gupta probably wished the same for their younger son, 'Sunny'. Recently returned from Cambridge, where he had successfully negotiated his Tripos, this scion of an upper class Bengali family of aristocratic lineage was expected, at the very least, to follow his grandfather and brother into the Indian Civil Service. Instead, within a year of his arrival in India, Indrajit 'Sunny' Gupta was a whole-timer in the (illegal at the time) Communist Party of India (CPI), working underground.