No suicide note was recovered from the spot, police said.
The woman, identified as Jyoti, was rushed to a hospital and she is stated to be out-of-danger, police said.
During investigation, it emerged that Jyoti had married a man against the wishes of her family around two years ago. But the reason why she took the extreme step could not be ascertained yet, the official said.
Last evening, a 35-year-old man allegedly committed suicide by jumping in front of a moving metro train at Rohini East station in outer Delhi.