The Anti-Corruption Bureau has stepped up its investigation into alleged corruption at Nizam's Institute of Medical Sciences, conducting searches across multiple departments over suspected irregularities in recruitment, procurement and outsourcing contracts. Hyderabad: The Anti-Corruption Bureau (ACB) has intensified its investigation into alleged corruption at the Nizam's Institute of Medical Sciences (NIMS), with simultaneous searches conducted across several departments to examine suspected irregularities in recruitment, procurement and outsourcing contracts dating back to 2014.