They are just cheats and just take your money and disappear.
They were supposed to use Kitply plywood and cheated us by using low quality plywood. 1 year later the cupboards are infested with wood-borers!
We had paid a good amount of money to get the interior work done using quality plywood. You would never know the type used as they laminate it and get it from the factory.
The sliding doors which they fixed keep coming off the tracks and we had to call another carpenter to fix them. Soon we would have to replace them.
If you ask anything extra such as locks for cupboards which is not there in their standard design, they will promise it till they get the money, but will keep postponing it saying many excuses and once they get the main work done, they wont come back again.