CORRECTED - CORRECTED-UPDATE 1-Rolta order book 16.5 bln rupees, eyes growth

(Corrects sales figure in penultimate paragraph to 3.5 billion rupees from 5.5 billion rupees)

* Power sector to be main growth driver.

* No more price revisions in year to March 2010

* To bid for 50 bln rupees power, oil, defence projects. (Adds details, quotes, shares)

NEW DELHI, Oct 22 (Reuters) - Software services firm Rolta India Ltd (ROLT.BO) has an order book of 16.5 billion rupees, covering more than four-fifths of its projected sales for the year to March 2010, its finance chief said on Thursday.

Chief Financial Officer Hiranya Ashar affirmed an earlier forecast for a 12-15 percent growth in 2009/10 sales, helped by increased investment by government and private firms in sectors it operates in.

Mumbai-based Rolta, which offers geospatial information systems (GIS), engineering services and enterprise software, posted revenue of 13.7 billion rupees last year, more than half of which is generated from India.

"The pipeline is more active than what it was maybe two quarters ago, when things were there but not moving," Ashar said over the telephone. "Now they're more forthcoming and they want to start projects and they have funding."

The firm is bidding for projects worth 50 billion rupees across power, energy and defence sectors, Ashar said.

"Oil and gas is picking up, power is looking very good. Power is going to be main driver."

Ashar said the firm was not being pushed for price cuts and did not expect any pricing pressure for the rest of the year.

"We gave price revisions in February and March, and after that, it's very clear that you can't come every three months for price revisions."

Earlier, Rolta said September quarter profit more-than doubled to 561.2 million rupees from a year-ago period that saw forex losses. Sales rose 1.3 percent to 3.5 billion rupees.

Shares in Rolta had risen 40 percent in the September quarter, outpacing the Mumbai market's .BSESN 18 percent. They closed 2.8 percent lower at 187.15 rupees, when the broader market fell 1.29 percent. (Reporting by C.J. Kuncheria; Editing by Harish Nambiar)