Chawla completed her earlier schooling at Tagore Baal Niketan School,Karnal. She was underage and to enable her to enroll in school, her date of birth was changed to July 1, 1961. She completed Bachelor of Engineering degree in Aeronautical Engineering at Punjab Engineering College at Chandigarh in 1982. She moved to the United States in 1982 and obtained a M.S. degree in aerospace engineering from the University of Texas at Arlington in 1984. Chawla went on to earn a second M.S. degree in 1986 and a PhD in aerospace engineering in 1988 from the University of Colorado at Boulder. Later that year she began working at the NASA Ames Research Center as vice president of Overset Methods, Inc. where she did CFD research on Vertical/Short Takeoff and Landing concepts. Chawla held a Certificated Flight Instructor rating for airplanes, gliders and Commercial Pilot licenses for single and multi-engine airplanes, seaplanes and gliders.
Chawla joined the NASA Astronaut Corps in March 1995 and was selected for her first flight in 1996. She spoke the following words while traveling in the weightlessness of space, "You are just your intelligence". She had traveled 10.67 million km, as many as 252 times around the Earth.
Her first space mission began on November 19, 1997 as part of the six-astronaut crew that flew the Space Shuttle Columbia flight STS-87. Chawla was the first Indian-born woman and the second Indian person to fly in space, following cosmonaut Rakesh Sharma who flew in 1984 in a spacecraft. On her first mission, Chawla traveled over 10.4 million miles in 252 orbits of the earth, logging more than 372