Tata Consultancy Services (TCS), the country?s biggest software exporter, is ready to roll out what is internally being talked about as group chairman Ratan Tata?s next dream project. The company?s senior management has even called it the ?Nano of IT?. The ambitious project, which is a ?cloud? offering, is expected to be launched mid-September, with the lofty aim of making information technology affordable to the country?s 35 million small and medium businesses (SMBs).

Developed by a 250-member TCS team, the cloud offering promises to lower the cost of ownership by 35-40%, compared with the traditional licensing model. Expensive capex investments required in IT will be converted into a monthly subscription model. Pricing per user for the entire IT stack will be Rs 8,000-10,000 per month. The stack includes hardware, networking and software. New customers will be locked in for three years, sources close to the development told FE.

The service is expected to be a major growth engine for TCS. FE has learned that executives have been internally talking about raising up to $1 billion a quarter in the coming years from the service, though it is early days yet. Initially, the focus will be on the domestic market, but the firm plans to take the offering overseas later. To begin with, TCS is confident of adding 100 customers every quarter or 400 in a year?s time.

Cloud services, delivered over the Internet, are an on-demand paradigm that can disrupt the way IT services are delivered today. Cloud computing uses virtualisation technologies and can potentially make an enterprise shed all of its IT assets one day ? servers, storage, and applications can all be rented as per the requirement from cloud service providers.

The TCS service has been piloted with 75 customers and Ratan Tata is likely to review the project later this month. ?We are checking with his calendar and trying to get a date for the launch in September,? a source said.

When officially launched, this would be one of the biggest cloud rollouts in the world, and perhaps Ratan Tata?s last big-ticket project before he retires in 2012 as Tata group chairman.

In the last few weeks, TCS has stepped up partner activities and concluded channel strategy meetings in New Delhi and Mumbai. The company has also hired a branding firm to coin a name for the service. So far, the offering has been variously called ?IT as a Service?, ?Cloud services stack for SMBs?, or ?Build as you grow, pay as you use?.

A spokesperson from TCS declined to comment on the planned service, saying it was too premature to talk at this moment. Vishal Tripathi, principal research analyst at Gartner India, said that thus far, traction for cloud-based solutions has been from enterprise customers in India.

However, SMBs will not find it challenging to adopt. ?Now, small or medium-sized companies can start their operations without worrying about buying licences for software or investing infrastructure which were most impacted because most of them didn?t have the budgets for expensive hardware and even more expensive software licenses,? he said. Gartner has estimated the cloud computing market to touch $150 billion in 2013. It predicts that by 2012, 20% of businesses will own no IT assets.

TCS? domestic rivals Infosys and Wipro are also readying cloud services. Infosys has thus far done cloud engagements with about 20 customers and Wipro has a similar number of consulting assignments as well.