THIS January, Kalyani Karlekar, the 89-year-old Calcutta-based social worker who presides over the Calcutta Social Project, a non-governmental institution looking after slum children for the past 27 years, received a letter from Berlin. A cheque of Rs 2.97 lakh was enclosed with a cryptic note from Gunter Grass. The 1999 Nobel Laureate has clearly not forgotten the city he last visited 13 years ago and whipped up a storm with his rather acerbic comments.