(Bloomberg) — About 8,300 miles east of Wall Street, on a stretch of Bangalore’s Outer Ring Road, sits what was once the heart of the global financial industry’s back office.Before the pandemic, this cluster of glass-and-steel towers housed thousands of employees at firms like Goldman Sachs Group Inc. and UBS Group AG who played critical roles in everything from risk management to customer service and compliance.Now the buildings are eerily empty. And with case counts soaring across Bangalore and much of India, work-from-home arrangements that have sustained Wall Street’s back-office operations for months are coming under intense strain. A growing number of employees are either sick or scrambling to find critical medical supplies such as oxygen for relatives or friends.Standard Chartered Plc said last month that about 800 of its 20,000 staffers in India were infected. As many as 25% of employees in some teams at UBS are absent, said an executive at the firm who spoke on condition of anonymity for fear of losing his job. At Wells Fargo & Co.’s offices in Bangalore and Hyderabad, work on co-branded cards, balance transfers and reward programs is running behind schedule, an executive said.While banks have so far avoided major disruptions by shifting tasks to other offshore hubs, India’s Covid crisis has exposed a little-discussed vulnerability for companies that have spent decades outsourcing functions to the country. India’s outbreak is intensifying even as vaccinations fuel economic recoveries in other parts of the world, heightening fears of a back-office bottleneck at a time when Wall Street firms have rarely been busier.“This is not a local, India-only problem, this is a global crisis,” said D.D. Mishra, senior director analyst at researcher Gartner Inc. The current wave will be “significantly bigger” and organizations with India-based staff “will need to take action to plan for and mitigate if needed,” Mishra and his colleagues wrote in a note last week.Nasscom, the key lobby group for India’s $194 billion outsourcing industry and its almost 5 million employees, has downplayed the threat to operations. But Mishra and fellow analysts at Gartner say they’re fielding a daily flood of calls from anxious global clients asking about the Covid-19 situation.India’s total coronavirus infections have risen to almost 23 million, of which about a third were added since mid-April. The state of Karnataka, whose capital is Bangalore, has been hard-hit.Experts have warned the crisis has the potential to worsen in the coming weeks, with one model predicting as many as 1,018,879 deaths by the end of July, quadrupling from the current official count of 249,992. A model prepared by government advisers suggests the wave could peak in the coming days, but the group’s projections have been changing and were wrong last month.In Bangalore, Delhi and Mumbai, the three main bases for the financial giants’ operations, infection rates have reached such alarming levels that local governments have ordered stringent restrictions on movement.While the crisis has hit swathes of the nation’s $2.9 trillion economy, the latest wave has notably affected the twenty-something segment of the population that dominates outsourcing companies and is hard to replace. Most of them are English-speaking, technically-skilled workers.Continuity PlanningFor now, back-office units are marshaling part-time workers or asking employees to perform multiple roles and re-assigning staff to make up for those who are absent. They are scheduling overtime, deferring low-priority projects and conducting pandemic continuity planning exercises for multiple locations should the virus wave intensify.A Wells Fargo employee said some work is getting transferred to the Philippines, where staff is working overnight shifts to pick up the slack. The San Francisco-based bank employs about 35,000 workers in India to help process car, home and personal loans, make collections, and assist customers who need to open, update or close their bank accounts.“Nearly all Wells Fargo employees in India are working remotely, and we are not experiencing significant impacts to our business operations,” spokeswoman Beth Richek said in an email response to questions. “We are continuing to support our employees, and we are helping local communities in India with more than $3 million in grants.”She added that no work has moved out of India and there have not been delays in the work the India team does to support Wells Fargo’s credit card business.An employee at UBS said that with many of the bank’s 8,000 staff in Mumbai, Pune and Hyderabad absent, work is being shipped to centers such as Poland. The Swiss bank’s workers in India handle trade settlement, transaction reporting, investment banking support and wealth management. Many of the tasks require same-day or next-day turnarounds. A UBS representative didn’t respond to a request for comment.With uncertainty surrounding how soon the Indian government will contain the crisis, one executive who asked not to be identified likened the situation to flying blind without any idea how many employees will be affected from one week to the next.Rebalancing Loads“We are looking carefully at how we can rebalance loads,” Standard Chartered Chief Executive Officer Bill Winters said on an earnings call last month, noting that some work has been routed to Kuala Lumpur, Tianjin and Warsaw. “In any case, we think we are very well provided for.”Barclays Plc CEO Jes Staley said some functions were shifted to the U.K. from India. Call volumes have increased and people are distressed, he said, adding that signs of pressure was something to watch for. The bank has 20,000 employees in India.Last year, when a sudden lockdown ordered by Prime Minister Narendra Modi saw these banks scrambling to keep their operations running, the European Banking Authority said the push to outsource support functions “exposed these banks to operational risks.”After asking their employees to work from home en masse last year, most of them have continued to operate at near 100% work-from-home levels. Natwest Group Plc’s workforce in Bangalore, Delhi and the southern city of Chennai — accounting for a fifth of its global total — is completely set up to work from home.Management BandwidthSimilarly, thousands of Goldman employees are working from home, doing high-end business tasks such as risk modeling, accounting compliance and app building. A representative for the bank said workflows can be absorbed by the wider team if needed and there’s been no material impact so far.Citigroup Inc. said there’s currently no significant disruption, while Deutsche Bank AG said employees were working seamlessly from home. Morgan Stanley and JPMorgan Chase & Co. detailed relief efforts they are undertaking, but didn’t elaborate on the impact on their operations. HSBC Holdings Plc Chief Executive Officer Noel Quinn said he’s “watching it closely” and ruled out any material impact at this stage.Besides worrying about disruptions to operations, employee well-being and securing medical help are also taking up a lot of management bandwidth at every large outsourcing unit.At a recent all-hands, virtual corporate strategy team meeting at Accenture Plc, for instance, the talk wasn’t about the usual pay-raises or promotions. Instead, worker after worker demanded flexibility, reduced workloads and no-meeting Fridays, an executive said, asking not to be named discussing internal company matters.Their size has become a hindrance, one executive said, but it’s not clear where else they can go for talent and scale, he added.The safety of its people is a top priority and the company is taking various measures to ensure their health and wellbeing, Accenture said in an emailed statement. It also has the ability to transfer work across its global network to continue to meet the needs of clients.“We are telling clients they need to relax service levels and reduce expectations for the coming few weeks,” said Mishra, the Gartner analyst. “This is not a normal situation.”(Updates story from May 8 with comment from Wells Fargo in 15th paragraph)For more articles like this, please visit us at bloomberg.comSubscribe now to stay ahead with the most trusted business news source.©2021 Bloomberg L.P.