Das participated in the 2004 Olympic Games where she competed in the singles table tennis competition; she made her second appearance at the event in the 2016 edition after a gap of 12 years. Das reached the quarterfinals of the women's doubles event at the 2017 World Table Tennis Championships partnering Manika Batra; the duo became the first Indian pair (and the first Indians in over 61 years) to do so. The pair also won the silver medal at the 2018 Commonwealth Games.She was awarded India's fourth highest civilian award the Padma Shri in 2021.