Hi @niranjan_addagatla. I honestly do not use the Tube & Pipe tools (so far) where I work, but I do know that they those tools are added to Inventor as an add-in (ApplicationAddIn), not as part of the main/core Inventor application. As far as I know, the only way to get into those tools is through an AssemblyDocument (not through a part or drawing), and then through its AssemblyComponentDefinition using its AssemblyComponentDefinition.BIMComponent property, as the entry way. That property returns a BIMComponent object. Then you just keep digging deeper from there. This same area is also used for the 'Cable & Harness' stuff also. Because, when you go to the Tools tab, then click on the Add-Ins button (in the Options panel), then while the Applications tab is active, scroll down to where you see "Routed Systems: Cable & Harness" and "Routed Systems: Tube & Pipe". Both their names start with "Routed Systems", even though both show a different DLL file in the 'Location' box. I do not know if those two add-ins have their own 'API' (automation access for users), like the iLogic add-in does, but I highly doubt it.
Wesley Crihfield

(Not an Autodesk Employee)