Can university revoke the degree when data were edited/fabricated? Is student or supervisor at fault? Can the student be sent to prison or fined? Say a M. Tech thesis contains original experimental data, but some results were edited to show significant results, and is this is later found out. Can this editing result in a cancelling/revocation of the awarded degree, even if found after some years? Who can be held responsible for this fabrication (faculty, student, and/or supervisor)? What action will/can the university take on the student? Can the student be punished legally with prison and/or fine?
A prominent German example is former minister of defence zu Gutenberg. He lost his title and his job because of plagiarism years after the fact. 

https://en.m.wikipedia.org/wiki/Karl-Theodor_zu_Guttenberg 

However, this may very well work differently in other countries.