Rahul, of course, is Rahul Gandhi aka Raul Vinci, the general secretary of the Congress Party of India.
The Hindustan Times article has this interesting information about the legal notice:
A copy of the letter of Professor Alison Richard, vice-chancellor of University of Cambridge, was attached to the notice. The letter said Rahul was a student of the university as a member of Trinity College from October 1994 to July 1995 and was awarded an M. Phil in Development Studies in 1995.Apparently, Rahul Gandhi's performance at Cambridge was so brilliant that he earned an M Phil degree in just 9 months! The same Rahul Gandhi who had to get into Delhi's St Stephen's college, under sports category and failed out from there. The same Rahul Gandhi who got into Harvard after a huge monetary donation and was kicked out from there after only 3 months for not being able to perform. The same Rahul Gandhi whose Cambridge University certificate shows that he failed a subject (reproduced in The New Indian Express article.
It would be sweet if the Congress Party's legal notice results in the truth about Rahul's education being settled once for all. That would be quite an irony. But I am not holding my breath for that any time soon.
Bonus video: Dr Subramaniam Swamy talking about Rahul Gandhi's citizenship and education -