Hawking radiation in Reissner-Nordstr\"{o}m blackhole with a global   monopole via Covariant anomalies and Effective action
  We adopt the covariant anomaly cancellation method as well as the effective action approach to obtain the Hawking radiation from the Reissner-Nordstr\"{o}m blackhole with a global monopole falling in the class of the most general spherically symmetric charged blackhole $(\sqrt{-g}\neq1)$, using only covariant boundary condition at the event horizon. 
Sunandan Gangopadhyay