The burglary was captured on CCTV cameras and the accused have been identified, they had said yesterday.
They said the burglary was committed on the night of Diwali when the city was busy celebrating the festival of lights. The heist was detected the next day after the owners came to the units.
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It is suspected that the tenants, who lived on the first floor of the building, were involved in the crime, the police said.
The vault in one of the manufacturing units was cut open with the help of a gas cutter and jewellery worth Rs 6.80 crore was stolen from it, they said.
The locks of another unit were also found broken and jewellery worth Rs 5.20 crore was stolen from it, they added.