Hyderabad: The top 20 Indian IT companies accounted for 53 per cent of the $28.5- billion revenues of the IT sector in 2004-05, according to a survey by IT publication Dataquest.

The survey shows that the dominance of the top players is likely to continue as their revenues showed an increase of more than 33 per cent earned by the industry.

The newly-listed Tata Consultancy Services continued to rule the top in 2004-05, increasing its gap with Infosys and Wipro, thanks to its CMC subsidiary.

While the difference between TCS and the then number two (Wipro) was $230 million in 2003-04, the gap has now increased to over $630 million in 2004-05. Also, Infosys has inched up and replaced Wipro as the number two IT company in India.

However, if the combined revenues of BPO and IT were included, Wipro, with a total revenue of Rs7,411 crore, replaces Infosys in the second position.

Despite the strong domestic market growth for the top 20 companies, exports accounted for about 55 per cent of the total revenues. In terms of the domestic market, BFSI, IT / telecom, and manufacturing helped the domestic players post strong growth of 39 per cent, as against 19 per cent for 2003-04. Moser Baer was the only DQ Top 20 company to see a decline in its revenues

Exports for the top 20 companies showed strong growth and grew at 43 per cent, up from 32 per cent.

2004-05 ranking by revenue: