Hi Manan
on Red's Fixed asset tutorial is explain all steps, on ADempeire 3.6.1 all working, only can't work automaticaly creating assets, process inbound charges from matched invoices not exist, theres new process but not enabled,
should you try demo from Peter Shepetko 
http://fina.net.ua:8080/webui/faDemo/faDemo look at asset PC HP DX5150-Standard-1000000 and all related records
try this examples from 360 on 361 Carlos Version with read/write same settings, should work fine
regards
Gordan
http://erpinfosystems.blogspot.com/