Her parents Alexander and Elizabeth Ittercherya were from Kerala and both worked with the Indian Railways.

She later completed her Bachelor in Education from Bakunti Devi College at Agra with a First Division.

She taught at St. George's School Agra for several years before she joined the Indian Railways.

A year later she completed 15 jumps which led to her joining the Skydiving Demonstration Team.

Thomas did her first demonstration jump at Jabalpur for the Army Ordnance C, Celebration using a Para Commander for the first time.

1983: Thomas was part of the Demonstration Team for Federation Aeronautical International Annual Conference, hosted by the Aero Club of India.

1989: Obtained special permission to train with the Turk Hava Kuram - the Aero Club of Turkey with their team.

1991: Obtained permission to train in Russia at Wolosowo during which she completed 25 jumps with a trainer.

1992: Was part of the bid for hosting the International Parachuting Commission in India at Paris, where they won the vote against Ireland.

1993: Represented India at the International Commission held at Washington, DC, U.S.A. 1994: Was part of the organizing team for the 45th Plenary of the International Parachuting, held at Agra, India and attended by 35 countries.

1995: Skydived at the opening ceremony for the First National Youth Festival (YUVA UTSAV) at Bhopal.

Shankar Dayal Sharma, who signed her log book for her, writing "Congratulations".

1996: Skydived at Ittanagar, Arunachal Pradesh on 20 February 1996 for their State Hood Celebrations.

1997: Skydived with the Army Adventure Team during the closing ceremony of the polo match where the Hon.

2000: Took part in "Operation Royal Salute" with the Jordian Special Forces in memory of the Late King Hussein of Jordan and the Marine Veteran Jumpers.

2002: Completed the first balloon jump in the country at Hissar, Haryan, for the National Youth Festival.

[1][2] Was the First Indian Woman to Skydive at the North Pole in minus 45-55 °C from 7,000 feet, during which time she had to stay at the 89th Latitude for 6 days due to bad weather before her jump.