Hi Dominik,
In Pune, there was a large colony of brick makers with lots of kilns and piles of bricks in various stages of preparation at the foot of the Parvati hill. At some relatively recent time [probably two/three decades ago], because of the growth of the residential areas, that entire colony was moved somewhere else, and that land became occupied by new residential buildings. There must be extensive records in the administrative departments of Pune City Corporation [पुणे महानगरपालिका]. I am sure the brick-making business has not gone away, only that it was moved to a new location. Our Pune friends like Saroja Bhate and Shrikant Bahulkar may be able to provide more current information.
Madhav
Madhav M. Deshpande
Professor Emeritus
Sanskrit and Linguistics
University of Michigan
[Residence: Campbell, California]