Maharashtra Chief Minister Prithviraj Chavan on Friday said that there was definite progress in the July 13 bomb blasts investigation, and that he was regularly updated on the developments.
He told journalists that he couldn't divulge specific details, but added that various agencies were probing the blasts.
One month after the blasts, the Opposition targeted the government for not making any arrests.
Mr. Chavan had said that surveillance and wireless systems would be upgraded.
A Home Department official said that the government had asked for a detailed plan for upgrading police wireless systems with the latest in the field of communications and technology. A presentation on this was made to the government, and the Director-General of Police had been asked to find a good option. The government had also asked for systems of alternative communication in emergencies, and police teams had visited Tamil Nadu and Andhra Pradesh to check out the systems there. A decision could be taken in eight to ten days on the alternative systems.
The CCTV bids would also be finalised within three months; at least 2,000 of them were to be installed by the year end, it is learnt. The government plans to instal CCTVs all over the city to increase surveillance by upgrading the communication network soon.