March 25, 2020. India goes into its first nationwide lockdown. Streets empty overnight. Shops shut. People panic and start hoarding groceries. And suddenly, an app called BigBasket becomes the lifeline of millions of urban Indian families who can't step outside their homes.

This should have been BigBasket's greatest moment. Demand exploded. Orders multiplied tenfold overnight. Every Indian who had never used grocery delivery suddenly downloaded the app.

Instead, it became BigBasket's worst nightmare. The app would show "no slots available" all day. Orders placed in the morning arrived four days later. Half the items were missing on arrival. Customers raged on Twitter. And the company scrambled desperately to hold together a supply chain that was visibly falling apart.

The problem wasn't demand. The problem was that BigBasket, like every other player, depended on hundreds of vendors and logistics partners it didn't fully control. And when the pandemic hit, that hidden fragility exploded into full view.

The invisible web that runs your favourite company

Most businesses aren't really one company. They're actually a network of dependencies held together by contracts, relationships, and good faith.

BigBasket, for instance, doesn't grow its own vegetables. It buys them from farmers and mandis through layers of agents. It doesn't make its own atta or biscuits. It buys from FMCG companies through distributors. It doesn't own the trucks that move stock between warehouses. Those are contracted out. It doesn't employ most of the delivery riders. They work through third-party gig platforms.

Every box of groceries that reaches your door passes through maybe 10 to 15 different entities, each of which had to show up and do their job correctly. When everything is running smoothly, this invisible web works beautifully. You see only a nice app and a rider at your door.

When one link in the chain breaks, nothing the company itself does can fix the problem quickly.

What actually broke during the lockdown

The lockdown didn't directly hurt BigBasket. It hurt BigBasket's vendors and partners. And through them, it hurt BigBasket.

Farmers couldn't bring produce to mandis because of transport restrictions. When produce did arrive, labour shortages meant it couldn't be sorted or loaded fast enough. Trucks couldn't cross state borders because police were enforcing unclear rules. Warehouse workers stayed home, fearing infection. Delivery riders' migrant communities emptied out as they headed back to villages.

Every single one of these failures was outside BigBasket's direct control. The company hadn't done anything wrong. Its own employees were working around the clock. But the hundred other entities it depended on were breaking simultaneously. And BigBasket absorbed all the blame from frustrated customers.

This is the cruel nature of supply chain risk. You take responsibility for the customer experience, but you don't control most of the supply chain that produces it.

Why this risk is especially dangerous for startups

Large, old companies have spent decades building redundancy into their supply chains. Hindustan Unilever has multiple suppliers for every raw material, in different regions, with backup plans if one fails. ITC operates its own logistics, grows its own e-Choupal procurement networks, and has alternative routes for every shipment. These layers cost money. They eat into margins. But they exist specifically to survive exactly the kind of shocks that hit in 2020.

Startups usually have none of this. To keep costs low and grow fast, they typically rely on single vendors for critical needs. One cold-chain logistics partner. One major supplier for a key category. One payments processor. One cloud provider. This is efficient on a sunny day. It's catastrophic when any one of those partners has a bad week.

BigBasket, despite being well-funded, had structural dependencies. When the dependencies failed, the company had no quick alternatives. It had to rebuild procurement routes in the middle of the crisis, figure out new logistics partners overnight, and hire delivery riders while competing with every other app trying to do the same thing.

The three types of supply chain risk

Experienced operators think about supply chain risk in three layers.

The first is single-vendor risk. You depend on one supplier for something critical. If that supplier has a fire, bankruptcy, or quality problem, you're stuck. Many companies have died because their single battery supplier had a recall or their single payment gateway had a long outage.

The second is geographic risk. All your suppliers are in the same region. One flood, one political unrest, one local lockdown, and your entire supply chain shuts down. This is why global companies diversify across countries, even when it costs more.

The third is systemic risk. Every supplier in your industry depends on the same underlying resource — a specific chemical, a specific port, a specific regulation. When that resource becomes scarce, everyone's supply breaks at once. The semiconductor shortage of 2021 was a classic example. No amount of vendor diversification helped, because all chip makers depended on the same handful of fabs in Taiwan.

BigBasket's lockdown crisis was all three risks hitting together. Single vendors in stress. Geographic concentration. Systemic disruption of labour and transport. It was a masterclass in how quickly a supply chain can unravel.

The trade-off every founder faces

Here is the hard truth. Good supply chain management costs money. Multiple vendors cost more than one. Buffer inventory costs more than lean inventory. Backup logistics partners charge retainers. Regional diversification adds overhead.

Founders, especially those under investor pressure, tend to cut these costs. "Why pay for a second supplier when the first one is working fine?" This logic feels right 99% of the time. Then one of the 1% moments hits — a pandemic, a war, a port strike, a fraud scandal at your supplier — and the decision looks catastrophic.

The best operators build a small amount of deliberate inefficiency into their supply chain. They accept slightly higher costs in normal times to survive abnormal times. This is called resilience. It's not sexy. It's not what MBA case studies celebrate. But it's how companies survive decades rather than quarters.

What BigBasket did after the shock

To their credit, BigBasket's leadership used the 2020 crisis to fundamentally restructure their supply chain. They diversified vendors across more geographies. They invested in their own warehouses and cold chain. They built direct relationships with farmer groups rather than depending entirely on mandis. They moved more of the logistics in-house.

All of this was expensive. It slowed growth. It cut margins. But when the second wave of COVID hit in 2021, and again when supply shocks came later, BigBasket was significantly more resilient. They had learned the hard lesson. And when Tata Group acquired BigBasket in 2021, part of what Tata was buying wasn't just users or tech. It was a supply chain that had been battle-tested and rebuilt.

The lesson for anyone building anything

If you're starting a business, here's a useful exercise. List every single external party your business depends on. Suppliers, contractors, software vendors, payment processors, logistics partners, platforms that send you traffic, landlords, banks. Everyone.

For each one, ask: if they disappeared tomorrow, how long until my business is functional again? A day? A week? Never?

You'll be surprised how many of these "dependencies" are actually life-or-death risks you've never consciously thought about. And the moment you see them clearly, you can start reducing them — by diversifying, negotiating backup agreements, or at least having a plan for what happens when each one fails.

The one-line truth

Every successful company you admire is held together by a web of vendors and partners you've never heard of. When everything is smooth, they are invisible. When things break, they reveal how fragile even the strongest-looking business can be.

You are only as strong as the weakest supplier in your chain. Build your business as if you expect that weakest link to fail eventually — because one day, it will.

What this means for you

Whether you end up starting a company, working inside one, or investing in stocks, supply chain resilience is something most people underestimate. Companies with diverse, redundant, well-documented supply chains weather storms. Companies that optimize purely for cost get exposed the moment conditions change.

When you read about a company's strategy, ask about their vendors. When you hear about record margins, ask whether they've cut resilience to produce them. The answers will tell you a lot about whether the company is built for good times or for all times.

BigBasket survived 2020 by the skin of its teeth, then emerged stronger because it used the pain to fix the underlying fragility. Not every company gets that second chance. The wise ones don't wait for a crisis to find out where their weak links are.