Hi Rajeev Jha, what is the process? In which application? You could heat the steam at constant volume, so the pressure will rise.

Yes you need to be specific about your question.

If your question was more specific, it would help us answer better. However, you might want to follow a discussion in stack exchange regarding building a compressor with no moving parts. 

http://engineering.stackexchange.com/questions/2832/is-it-possible-to-build-an-air-compressor-with-no-moving-parts

It can be heated via an electric heater or by heat exchanger depending upon application.

As Arne Müller said heating the system in constant volume can do the job but again it can increase the cost.