Nikhat Zareen was declared the winner after opponent Asenova forfeited during the opening round of the bout
Comeback-man Vikas Krishan, Asian silver-medallist Ashish Kumar and veteran Satish Kumar booked their places in the Indian men's boxing squad for next year's Olympic qualifiers.
Boxing Elite National Championships: Shiva Thapa, Sachin Siwach through to respective finals, Railways dominate proceedings
Railways' Sachin continued his winning run as he defeated Punjab's Sagar Chand 5-0, while Assam's Shiva staved off the challenge of last year's silver medallist Abhishek Yadav with a unanimous win
Asian Youth Championships: Nitu, Manisha and Lalita claim gold as Indian boxers finish event on high
None of the Indian boxers could not make the cut for Buenos Aires as they did not win gold medals in the categories that would feature at the Games.
Indian male boxers endured a mixed day at the Asian Youth Championships, where three advanced to the medal rounds and qualified for the Youth Olympics, while six others lost in the quarterfinal stage in Bangkok on Monday.