Hello Pratap, look at that post about my own experience on solution manager, i got something similar than you on Spain but work as a solution manager consultant since years ago:
some time ago i update on certification forum some information about learning maps and useful information :
Last Week i have the opportunity to visit the Run SAP Global Summit on Waldorf, and there i share experience with a lot of International and Global Partnners about Solution Manager; around 4 days of event the around 70% of sessions are related to solution manager topics, service provider functions, var opportunity, etc...
I think that the opportunity on Solution Manager is now, there are a few people that know in deep what solman can do and how to do it but you have to think that SAP think about improve that solution and you have the guarantee than solman will not be abandoned by SAP as well as happens with other products.
Now Solution Manager are a success factor and a excellent tool for IT departments where SAP systems are an important part of they business and need a good tool for take care about the infrastructure; solman is also a key on some SAP certification process for partnner like RunSAP and recently on a scenario like Service Provider.
Check that linkdin group that i created to speak/know other sap solution manager interested on Solution Manager, and don't hesitate to ask any doubt or request help if you need.
http://www.linkedin.com/groups?gid=4535586&trk=myg_ugrp_ovr
Solman has low demand but that will change early, is a gamble to think