Sundar Pichai said Donald Trump's immigration order will create "barriers" to bringing talent to the US.

Highlights Visa ban will create barriers in bringing talent to US: Sundar Pichai

The company has ordered its travelling staff to return to America

Microsoft and Facebook top bosses have also criticised the ban

Google's India-born CEO Sundar Pichai today criticised US President Donald Trump's controversial immigration order against people from seven Muslim-majority countries, saying it will create "barriers" to bringing great talent to the US, as the Internet search giant ordered its travelling staff to return to America. In an email to staff, Mr Pichai said that the ban on foreign nationals from seven Muslim-majority countries will hit at least 187 Google employees. "We're upset about the impact of this order and any proposals that could impose restrictions on Googlers and their families, or that could create barriers to bringing great talent to the US," the Wall Street Journal quoted Mr Pichai as saying in the email."It is painful to see the personal cost of this executive order on our colleagues," he said.Google has recalled around 100 of its affected staff from overseas, the BBC reported.President Trump today ordered "extreme vetting" of people entering the US from seven Muslim-majority countries and banned the entry of Syrian refugees until further notice, as part of new measures to "keep radical Islamic terrorists" out of America.The countries impacted are Iran, Iraq, Syria, Sudan, Libya, Yemen and Somalia.The controversial move, signed a week after he was sworn-in as the President, fulfills the vow Mr Trump made on the campaign trail to limit Muslim immigration to the US.In his message to employees, 44-year-old Mr Pichai, who grew up in India, suggested that at least 187 employees hailed from countries included in the ban."Our first order of business is to help Googlers who are affected," he said. "If you're abroad and need help please reach out to our global security team.""We wouldn't wish this fear and uncertainty on anyone-and especially not our fellow Googlers," Mr Pichai wrote. "In times of uncertainty, our values remain the best guide."Immigrants make up much of the workforce in Silicon Valley, including many executive roles, and the tech industry has long advocated for more open immigration laws in the US, saying they need more skilled foreigners to fill technical jobs.The new restrictions will have a major impact on American technology companies that hire skilled staff from all over the world on special H1-B visas, mostly used by Indian IT firms."There have already been reports of green card holders, who are allowed to work in the US, being prevented from getting on flights. However, green cards are not specifically mentioned in the executive order," the WSJ said.Microsoft has also warned its shareholders that curbs on immigration could have a material impact on its business.

Facebook CEO Mark Zuckerberg has also criticised Mr Trump's decision to severely limit immigrants and refugees from certain Muslim-majority countries, saying America is a nation of immigrants and should be proud of it."Like many of you, I'm concerned about the impact of the recent executive orders signed by President Trump," Mr Zuckerberg wrote on his Facebook page.