They are step down fixes, you cannot fly below those altitudes at those distances, if you do go around. If you want to know why have a look for “VABB Aerodrome Obstacle Chart Type-A RWY 32” on the inter web. Some thought needs to be made on how you are going to fly the approach now that you know what the chart is saying. They are charted this way because blindly using VNAV/LNAV may not guarantee obstacle clearance. If you blindly fly a 3.3 degree FPA or a VNAV path that would be rounded to 3.3 degrees you could fly below the step down fixes which compromises the designed obstacle clearance.
That applies generically to every instrument approach: don’t fly below hard altitudes at fixes. If it is coded correctly in the database, then the automation (monitored) should respect these altitudes; if you’re using basic modes you make sure you cross these fixes at or above. Why should this particular NPA be “special” and what’s the proposed difference in technique between flying this and a VOR/DME anywhere else?