The law does not prevent storage of gas cylinders beyond 100kg.
The law requires that if you have more than 100 kg of LPG, you need to take a license from PESO.
the latest revision is that you do not need license for storage go cylinders that are connected to a Manifold that complies with the relevant IS standards. If you have a manifold that is of the correct standard (in terms of design, specification, etc), then you don't need a license, else you need to get a license to store