DEHRADUN: A CBI special court in Dehradun on Monday convicted a Lt Colonel and an assistant garrison engineer-rank official in a five-year-old bribery case and sentenced them to 10 years and 5 years of rigorous imprisonment, respectively. The court also imposed a fine of Rs 55,000 on the Lt Colonel and Rs 15,000 on the other official, reports Gaurav Talwar. Lt Colonel Bharat Joshi, who was then posted in Instruments Research and Development Establishment (IRDE) in Dehradun as garrison engineer, was arrested by CBI on July 8, 2016 while taking bribe from a private contractor, according to prosecution lawyer Satish Kumar. Lt Col sought Rs 38,000 as bribe from contractor