Type a Salumbar address into Zepto or Blinkit and you get the same answer: not serviceable. It is not an oversight. Ten-minute delivery needs dark stores holding inventory within two or three kilometres of the customer, and the economics of that need a population density Salumbar does not have and does not want.
So the question is not which app to use. It is what a town of forty thousand actually has.
Short answer: Zepto, Blinkit and Swiggy Instamart operate in roughly 50 metros and large cities. Salumbar, pincode 313027, is in none of their service areas. Same-day local delivery here comes from shops that already hold the stock.

Why the ten-minute model stops at the district line
Quick commerce works by putting a small warehouse - a dark store - every few kilometres and keeping two or three thousand fast-moving items in it. The store only pays for itself if several hundred orders a day come out of a radius of two kilometres.
In a metro that is one apartment complex. In a district town it is the whole town, and the order volume is not there. Which is why every one of these apps has expanded by adding more metros rather than by going deeper into districts - and why the list of cities they serve has stayed at roughly fifty for several years.
Nothing about this is likely to change for Salumbar soon, and it is worth saying so plainly rather than waiting for an app that is not coming.

What the courier route actually gives you
JioMart, Amazon and Flipkart will all deliver packaged groceries to 313027. The catch is time and category.
Time: two to six days, because it is a courier from a regional warehouse, not a local rider. Anything you needed today is not solved by this.
Category: packaged and sealed only. No loose dry fruit weighed to order, no whole spices by the hundred grams, no "half a kilo of W320, roasted". The things an Indian kitchen actually runs out of are mostly the things these platforms do not sell loose.
They are good for a sealed packet of a brand you already know. They are not a grocery shop.

How same-day works in a town this size
The thing a local shop has that a dark store does not is that the stock is already here. There is no warehouse to pick from and no city to cross - the kaju is in a dabba forty feet from the delivery scooter.
Which is why the realistic promise in Salumbar is not ten minutes but the same day, and that is genuinely what people need. An order placed before five in the afternoon reaches the house that evening, free above two hundred rupees, and you can ask for it weighed and packed the way you want it.
The other thing a local shop has is that you can talk to it. "One kilo W320, roasted, for a function on Sunday" is a sentence no app has a field for.
The honest comparison
Quick commerce is genuinely better at some things, and it is worth being clear about which. If you live in Udaipur and need one packet of milk at eleven at night, nothing beats it.
What a local shop is better at: buying loose and by weight, buying quantities that are not a standard pack size, asking what is fresh, getting something the same day without a minimum order that assumes a metro basket, and being able to send a message rather than fill a form.
For a town like Salumbar, the second list is most of what a household actually does.

Buying it in Salumbar
Our dry fruits is on this site with the weight and the price on every pack. Order before 5 PM and it reaches you the same day inside Salumbar, free over ₹200. We have been on Sadar Bazar since 1961. If you would rather just say what you want, send it on WhatsApp and we will confirm the price before we pack anything.
Questions people ask
Does Zepto deliver in Salumbar?
No. Zepto operates through dark stores in roughly 50 metros and large cities. Pincode 313027 is not in its service area.
Does Blinkit work in Salumbar?
No. Same model and the same limitation - the ten-minute promise needs a dark store within a few kilometres, which needs metro order volume.
Is Swiggy Instamart available in Salumbar?
No. It is not serviceable at 313027.
Does JioMart deliver to 313027?
Partially, by courier, in two to five days, and only packaged items. Nothing loose and nothing fresh.
What is the fastest grocery delivery in Salumbar?
A local shop that already holds the stock. Orders placed before 5 PM reach the same evening, and you can specify weight and grade rather than buying a fixed pack.
Is there a minimum order for local delivery?
At Daldawala, delivery inside Salumbar is free over ₹200. Below that it is still delivered, with a small charge.