Tytler escaped unhurt and the accused was arrested.
23-year-old Sehaj Umang Bhatia allegedly threw a piece of glass at Tytler and abused him during the function at a farm house in Mehrauli on Saturday night.
"Tytler was here to attend a wedding last night when Sehaj Umang Singh Bhatia threw a piece of glass at him and hurled abuses. Tytler was, however, not hit and was escorted to his vehicle safely," a senior police official said.
"The accused has been arrested and is being questioned," he added.
The attack comes a day after a Delhi court refused to accept the closure report and directed the CBI to conduct further investigation into the 1984 anti-Sikh riots case against Tytler.
Attempts to contact Tytler for his comments over the attack did not fructify.