Should I believe my lead ?
I am looking out for change in another division(where work is pure development, will this be helpfull?
I am also looking out for change outside organization(but no offers as of now, since I work only on core java and organization out is looking for more spec. frawework). will this help ?
You are the best person to make that judgement, but in general others won't have your interest in mind. You are the best person to decide what is best for you, and not others.
If you check a few online advertisements in your local area, it will give you an indication as to what the prospective employers are looking for. So, what ever you do, should make you employable. This means you need to learn the sought-after technologies/frameworks. If development is what you like, then it will be helpful. Set your goals first, and then go after achieving them.
acquire the skills what your prospective employers are looking for. Keep adding the skills you acquire to your resume.
Here are some general career tips http://java-success.blogspot.com.au/p/career-tips.html