New Delhi: India''s IT software and services exports from the top-10 firms crossed $15 billion to touch Rs68,236 crore in 2006-07.

The big three IT firms TCS, Infosys and Wipro received $8.7 billon (Rs39,260 crore) from IT software services and exports according to an industry survey and analysis by Dataquest (DQ).

The next four slots have been taken up by Satyam (Rs5,789 crore), IBM (Rs 4,880 crore), HCL Technologies (Rs4,598 crore) and Cognizant (Rs4,584 crore). With this line, there is no change in the rankings of the top seven of the top-10 software firms.

Seven of the DQ Top-10 software firms are Indian multinationals. The software and services exports of India development centres of foreign multinationals, which made it to the top 10 - IBM, Cognizant and Oracle — added up to Rs13,127 crore. The revenues of Oracle include those of i-flex post-integration during the year.

Oracle and Tech Mahindra stormed into the DQ Top 10 at No 8 and No 9 with revenues of Rs3,663 crore and Rs2,890 crore respectively.

Patni Computers slipped two positions to 10 with revenues of Rs2,573 crore.

Almost all Indian players focused on bringing down their revenue share from application development and maintenance (ADM) and succeeded.

Managed infrastructure services emerged as the new favourite. Infosys, which had identified IP creation as a major thrust at the end of the year, had 81 patent filings.