Trending @Cognizant; PAT on bench for ~3 months post training

I joined as a PAT in July and completed my training ( .NET FSE ) by mid-November. I was auto-allocated to a project, but currently there seems to be no requirement/work assigned. I’ve followed up with my home manager, but I’m usually left on read. I was asked to coordinate with a senior manager, who has advised me to wait for now. It’s been almost 3 months in this situation. I’m concerned about career growth.

Should I continue waiting for allocation, or is it better to start exploring opportunities outside? Would appreciate advice from anyone who has been in a similar situation.