It's several years since I visited them, but at the time, they used to make most of Slazenger. I saw GN helmets and softs being made, though GN now have their own factory. I saw Puma bats, Kooka. I remember them saying they made something like 30,000 Slaz bats with the with the white bandage style covering let alone anything else.
They are very efficient, make different items in different buildings so the dust doesn't get on everything. In Indian terms, you could say it is one of, if not the best factory setups and environments to work in.