Across India, since 2001
Hospitals, medical colleges and societies invite him to run the bench work, because you cannot learn to read a slide by being shown a picture of one.
Andrology technique fails in small ways. A smear slightly too thick. A chamber loaded before the sample settled. A count taken from the wrong squares. None of it is difficult, and all of it changes the number that ends up on the report.
Those errors are invisible in a lecture and obvious at a bench. So the sessions are built around participants doing the work while someone watches, which is the only point at which technique can actually be corrected.
The content is consistent wherever it runs: semen analysis performed properly, sperm processing across techniques, morphology under strict criteria, vitality, and sperm DNA fragmentation. What changes is the room, from a medical college department to a society conference to a clinic laboratory.