Kamlesh was correct in thinking that to produce test tubes babies, an egg and a sperm are placed in a test tube and then allowed to fuse under controlled conditions. But he was wrong in thinking that the baby develops in the test tube.
After the egg and sperm are allowed to fuse under controlled conditions, an embryo is formed. This embryo is then inserted into the women's womb where it gets implanted. It develops into a baby within 9 months and is finally delivered out from the body.