In an embarrassment for the Aam Aadmi Party, the Delhi University on Tuesday authenticated Prime Minister Narendra Modi's Bachelor of Arts degree from the university, days after a controversy erupted over his educational qualifications.

"We have checked our records and it has been authenticated that Prime Minister Narendra Modi's degree is authentic. He cleared the examination in 1978 and was awarded the degree in 1979," the university's registrar Tarun Das said, attributing the difference in spelling of Modi's name to minor discrepancies.

On Tuesday afternoon, a high drama ensued as an AAP delegation comprising Ashutosh, Ashish Khaitan and Sanjay Singh went to meet the vice-chancellor of Delhi university, Yogesh Tyagi, and inspect documents related to Modi's degree.

Even as the team reached the university office at 3pm, making their way through a large number of security personnel deployed at the spot, university authorities refused to let them meet Tyagi who, they said, was busy. The leaders left the spot in about half an hour.

Talking to dna, Ashutosh said, "We had called the university office to seek an appointment with the VC. Since there was no response, we went to meet the VC."

Questioning the registrar's comments, he added, "Not just the VC, even the registrar was too busy to meet us. But at the same time, we managed to take out time to speak to the media. There is something wrong here."

Pledging to hold on the row, "We want to inspect the documents related to the degree. The degree is just one paper. There are 14 other papers associated with the degree. We will go back tomorrow to inspect the papers," he said.

"There is an atmosphere of fear here. If all is well with the degree then why don't they reveal details?" Sanjay Singh questioned.

The BJP on Monday countered Delhi chief minister Arvind Kejriwal's accusations, making public Prime Minister Narendra Modi's college degrees in a bid to put a lid on the controversy.

Modi's BA and MA degrees were displayed at a news conference called by top party leaders – BJP chief Amit Shah and finance minister Arun Jaitley – at the party headquarters.

They demanded an apology to the nation from the chief minister for "misleading" the people.