A gang of unidentified assailants broke into a bank, tried to break open the locker containing cash and valuables and set the premises ablaze when they failed to do so.
Police said the incident was reported from a co-operative bank located in Alipur's Shiv Market area at 6 am on Monday. The men had tried to break into the locker on Sunday night.
Police said the men had gained access to the bank through its terrace.
"An iron grille on the terrace had been dismantled. The gang then used a bamboo ladder to climb down to the middle of the facility," the officer said.
Police said the gang had attempted to break into the bank's central locker by means of tools but failed.
"Prima facie it seems that the men had entered the premises with the motive of robbing it and got angry when they couldn't break into the locker, which contained Rs 9.8 lakh in cash and some valuables. This is why they set it on fire," said the officer.
They might not have been able to get their hands on the cash but succeeded in escaping with the central operating computer system's hard drive, police said.
"The bank staff said the hard drive contains a log of most banking transactions carried out in the facility in addition to confidential data pertaining to customer identity," said the officer.
Police said they were probing the matter.
"Since no CCTVs were installed in the bank's premises, it would be difficult to ascertain the identity of the men who broke into it. However, we have reason to believe that it is an insider's job. A case has been registered," the officer added.