Four youths knocked at the door of Gon Chaudhuri's Kalikapur residence seeking donation and as soon as domestic help opened the door, they overpowered her and tied Gon Chaudhuri and her, Debabarata Das, DC (SED) said today.
Chaudhuri, who is considered to be a pioneer in solar energy research, alleged that he was beaten up by the youths before robbing him of Rs 12,000 in cash and some medals he had won for his work.