PRAYAGRAJ, Oct. 31 -- Authorities tightened the cordon around a residential property in Baraipur Ramnagar village here on Friday as the excavation for suspected buried wealth entered its third consecutive day. The high-profile operation follows the sensational Wednesday night recovery of three blue plastic drums packed with cloth-wrapped bundles of Rs.500 notes, reportedly running into crores, buried beneath the house. While the exact valuation of the seized currency remains tightly guarded, the Income Tax (I-T) Department formally took control of the site and the investigation on Thursday evening. Brothers Rakesh Yadav, alias 'Mahakal', and Rajesh Yadav, the owners of the property in the Ganga Nagar zone, have been handed over to tax officials for sustained interrogation. The residence has been turned into a virtual fortress, guarded round-the-clock by nearly 32 police personnel drawn from three local police stations. Inside the sealed premises, around a dozen labourers hired on Wednesday night remain confined to the site as digging continues. To aid the manual excavation, officials brought in a dog squad on Friday afternoon and deployed ground-penetrating radar (GPR) to scan for underground anomalies, concealed vaults, or additional caches of cash and valuables. Investigators are also preparing to expand the search to adjacent orchards, vacant plots, and other real estate linked to the Yadav family. P3...