The steel cables are set by hand.
The cement mixer stands at one end of the site and the cement pours down one level, where it is picked up and carried by women to the location where the steel cables are being placed.
At the other end, tiles are being measured and hand cut.
Oddly enough the sand for the cement is in the middle of the site. These ladies fill bags and carry the bags to the cement mixer.
It is still cheaper to use human labor in India than big machines and technology. But those days will not last a lot longer.
One problem is that there is no law requiring every child be educated. So it is not against the law to keep your child out of school. Poor families need the youngsters to help earn money and children are put to work at a very young age.
However, in the south, bricklayers are getting 350 rupees a day. That is close to $8. Bricklayers in the north do not get nearly as much, but as more and more young adults go into IT, bricklayers will become more scarce and thus earn more. Education is the answer.