Legacy Matrix is the world's only Public Relations Intellectual Property for legacy building of brands created by Devesh Purohit. Devesh Purohit, a PR Professional from India researched for 12 years since 2011, inspired and influenced by Shah Rukh Khan, and created Legacy Matrix with his observations. The theory of Circle of Legacy Building is in public domain which is a significant part of Legacy Matrix IP as a whole.

Book reading, watching celebrity interviews, focus group studies, personal observations, attending media events, etc were the sources of mixed qualitative research.

Trade Secret is the core of Legacy Matrix IP. Legacy Matrix is a strategic brand management formulation for legacy building of brands in a long term vision with a focused and disciplined approach by the concerned client.

Devesh Purohit, the creator of Legacy Matrix focused all his energies in drafting and compiling his research in 2022 and 2023 at Valsad, Gujarat to create Legacy Matrix IP. In June 2023, Devesh Purohit registered a proprietor boutique PR firm named Legacy Matrix with MSME in Micro category. Legacy Matrix enhances the PR role of presence building to power building.

With 12 years of research and observations, Devesh Purohit quotes "Legacy is built in the culture".