India, April 13 -- The National Investigation Agency (NIA) questioned 26/11 Mumbai attacks conspirator Tahawwur Hussain Rana for the second consecutive day to probe a larger conspiracy of the series of coordinated strikes of 2008.

Tahawwur Rana is kept in a highly-secured cell, inside the NIA's head office at CGO complex in New Delhi, being guarded by security personnel round the clock, news agency PTI reported, citing unnamed sources.

Official told HT that Tahawwur Rana is being treated "as any other arrested person with no special treatment". He has been provided with a copy of the Quran at his request and is observed offering Namaz five times daily in his cell at the agency headquarters.

"He requested for a copy of Quran which we pr...