Delhi Chief Minister Arvind Kejriwal on Sunday said media reports claiming Delhi University has blocked an RTI query seeking details of Prime Minister Narendra Modi's BA degree "deepen the mystery" surrounding his educational qualifications.

He contended DU "cannot reject" information sought under the Right To Information Act by a city-based lawyer and the university should write to the Prime Minister to seek his permission for releasing the documents.

"This deepens the mystery around PM's degree. If DU feels that it is private info then under RTI Act, DU shud write to PM n seek his permission. DU can't reject (sic)," he tweeted.

He recalled BJP chief Amit Shah and Union Finance Minister Arun Jaitley had defended Modi when the controversy erupted over his alleged fake degrees, saying the documents were "genuine and anyone could take it from DU".

"What? But why? Didn't Amit shah n Jaitley ji say that degree was genuine and anyone cud take it from DU?(sic)" he asked on Twitter.

In its reply to the RTI query, DU reportedly said it has the right to maintain the privacy of every student and the information can only be disclosed to the student concerned.

The varsity said the applicant can approach the Appellate Authority of DU's School of Open Learning within a month from the day the reply was issued.