Hello Anish,

this is possible using the "Restrict Changes by Item Name" precondition.  Here are links to some documents which describe this further:

https://jazz.net/library/content/articles/rtc/4.0/source-control-process-recipes for more information about this precondition.

http://pic.dhe.ibm.com/infocenter/clmhelp/v4r0m1/index.jsp?topic=%2Fcom.ibm.team.concert.dotnet.doc%2Ftopics%2Ft_process_preconditions.html

Sonia