PATNA, March 13 -- Bihar cops claimed on Wednesday that gangster Chandan Singh alias Prince - currently lodged in Bankura jail in West Bengal -- masterminded the Monday's sensational heist at a Tanishq store-cum-showroom located at the Gopali Chowk area in the middle of the Ara town. Cops claimed that he used a virtual number through a smuggled phone to direct his accomplice to orchestrate the daring the loot....