new delhi nov 22 pti defence research and development organisation drdo on thursday claimed that the computers which were stolen from its kanpur laboratory did not contain classified or secret datareacting to reports of the theft in the kanpurbased defence material store and research development and establishment dmsrde a drdo spokesman said the stolen computers were only used for routine workdmsrde is basically a science and technology related laboratory working in the areas of nonmetallic materials and textiles said a statement from the organisationas per the report filed by the authorities of dmsrde with the police three computers and accessories were missing and are feared stolen between november 16 and 19this is the second major break at a drdo institution three years ago some hard disks went missing from the metcalfe house another prestigious defence research establishment and till date no headway has been made