IBM (NYSE: IBM) is said to be making huge job cuts but few people in the U.S. know about it because the reductions are taking place in India.

Some media are saying the cuts are hitting as many as one third of the 165,000 Big Blue workers there. IBM employs more people in India than in any other country, having surpassed the U.S. in 2010.

IBM recently committed to another round of cost-cutting, some $600 million in all. But due to changes made in how IBM deals with workers affected by layoffs in the U.S., little is known publicly about how many cuts are being made and where. Company documents no longer list workers affected by job unit who are being laid off and how many are being retained. That change, made earlier this year, has cut off virtually all layoff information that could be documented by the media and Alliance @ IBM, the union seeking to represent IBM workers.

Meanwhile, IBM’s CEO is replacing the head of Global Technology Services, the biggest revenue driver for the tech giant as part of her on-going efforts to return IBM to revenue growth, according to The Wall Street Journal.

Citing a “notice” from Chairman and CEO Ginny Rometty posted within IBM, The Journal says Erich Clementi will be replaced as of Jan. 1 by Martin Jetter, who heads IBM’s operations in Japan. According to the notice, Clementi will move to another “important senior leadership role as part of coming organization changes,” The Journal reported.

Global Technology Services income has been falling.

Rometty says Jetter has revived other units within Big Blue, including Japan and in Europe. 

“In each case, he and his team have moved quickly to embrace new approaches and new thinking,” The Journal quoted Rometty as saying.

Report: India Work Force Being Slashed

WRAL TechWire reached out to IBM for comment about the unfolding job cuts in India on Friday and followed up on Monday. A request for more information was forwarded to India but no response was received as of Tuesday morning.

Earlier this year, TechWire reported that IBM’s latest round of layoffs began across India in what was described as a “slaughter.”

The Economic Times of India is reporting that IBM slashed its headcount from a high of 165,000 in 2011 to 113,000. (Alliance @ IBM estimates that IBM’s headcount in the U.S. is down to some 73,000 following the transfer of 2,200 or so IBMers in RTP to Lenovo as part of the recently closed $2.1 billion x86 server sale.)

And more cuts are coming. Citing “people familiar with the company’s plans,” the newspaper says IBM plans to cut another 13,000 jobs by next year.

Computer Weekly says the job cuts reflect growing competition in the outsourcing services sector.

Vanitha Narayanan, IBM’s managing director for India, also may be headed back to the U.S. after moving to India in January of 2013. The Economic Times quoted an unnamed source as saying Narayanan and other “high cost executives” are being transferred to the U.S. as part of an “organizational rejig.” One source said her move was not related to the performance of the India operations but was part of a “global realignment of senior resources.”

In a statement provided to the newspaper, IBM said the Narayanan rumor “is completely unfounded,”

The company also said that it “continues to invest in India” and that there were “more than 3,000 open positions.”

However, during previous “resource actions” as IBM describes what in effect are layoffs, it does note that there often are open jobs for which workers being hit by layoff notices can seek.