Tata Consultancy Services' initial public offer will open on July 29 with a price band of Rs 775 to Rs 900 per share of a face value of Re 1, informed sources said.

TCS vice president (corporate communication), Atul Takle told PTI from Mumbai: "We have filed with the Registrar of Companies... and the price band for the IPO is Rs 775 to Rs 900."

He, however, did not comment on the launch date of the IPO, the biggest public issue in the private corporate sector that could help Tatas mop up about Rs 5,000 crore (Rs 50 billion).

The roadshows for the issue would commence from July 21 and the Tatas' team for these promotional shows could include Tata supremo Ratan Tata and TCS chairman S Ramadurai.

Sources associated with the IPO process told PTI that there would be as many as 24 roadshows for the issue commencing on July 29, which coincides with the 100th birth anniversary of J R D Tata.

TCS will offer 5.54 crore (55.4 million) equity shares of Re 1 each, including a fresh issue of 2.27 crore shares, in its initial public offering through a book building route.