R Priyanka, a 27-year-old Andhra Pradesh woman, working in an IT company in Thoraipakkam, Chennai ended her life on Monday by jumping off the ninth floor of her office building.
CCTV footage at her building showed that she had jumped to her death at 4.45 pm.
It was not immediately known why she had taken this drastic decision.
Sources said her engagement had been finalised a few days ago. It also emerged that she had called her aunt, who was at her home town, one final time and told her she was planning a surprise.
The post-mortem was conducted at the Government Hospital in Chennai.