Dear Mahajan, the embedded link includes a few references that may shed light on your question.

You may also be able to find further relevant information by doing a search on some of the freely available search engines.

https://scholar.google.co.za/scholar?hl=en&q=%22outcomes-based+learning%22+versus+%22research-based+learning%22&btnG=&as_sdt=1%2C5&as_sdtp=

http://www.emergingedtech.com/2013/12/top-11-trusted-and-free-search-engines-for-scientific-and-academic-research/?__scoop_post=316e54e0-defb-11e5-f19d-90b11c3d2b20&__scoop_topic=809024#__scoop_post=316e54e0-defb-11e5-f19d-90b11c3d2b20&__scoop_topic=809024

Dear Mahajan, the embedded link includes a few references that may shed light on your question.

You may also be able to find further relevant information by doing a search on some of the freely available search engines.

https://scholar.google.co.za/scholar?hl=en&q=%22outcomes-based+learning%22+versus+%22research-based+learning%22&btnG=&as_sdt=1%2C5&as_sdtp=

http://www.emergingedtech.com/2013/12/top-11-trusted-and-free-search-engines-for-scientific-and-academic-research/?__scoop_post=316e54e0-defb-11e5-f19d-90b11c3d2b20&__scoop_topic=809024#__scoop_post=316e54e0-defb-11e5-f19d-90b11c3d2b20&__scoop_topic=809024

Mahajan:

We are required to implement outcomes-based education at our university. For example, the university has set specific outcomes for all graduates, one of which is effective communication and critical thinking. In achieving the latter outcome, we as facilitators show that we have engaged students in developing these skills such as in the online debate (see attached). I think the opposite happens in research-based learning, where you engage in research to see what the outcome is, instead of being given it upfront.

Many thanks,

Debra

Conference Paper Debating: A Dynamic Teaching Strategy for Motivating Student...

This seems to be a purely semantic question. 

An outcome is a consequence - and outcomes based education (OBE) means that learning begins by defining what students should know/do/apply/demonstrate at the end of the learning experience. While it begs a question of assessment, OBE means structuring learning by starting with the outcome. You might want to look up "backwards planning", a related concept. OBE does not have any pedagogies universally attached to it.

Research based learning (the Leeds model, anyway) alludes to an inquiry-approach - so it refers specifically to pedagogy - in which students learn by doing problem-solving (as opposed to lecture, textbook-based, etc.).

Outcomes-based education implies that when programs are planned desirable learning outcomes are identified and considered in the formulation of the plans. Research-based learning is a multi-faceted concept referring to a variety of learning and teaching strategies that link research. Learning can find itself reduced to something that is specific, measurable, and observable. As a result, outcomes are not yet widely recognized