Flipkart — Items showing Not Deliverable

I have been purchasing items from Flipkart from 2013 onwards and have started facing some strange issue recently. I was able to purchase and receive items without any issues earlier even though Flipkart was not much established that time and now a days they are saying item not deliverable while checking with the same pincodes which I used to purchase earlier. Strange thing is it is showing item couldn't be delivered or "out of stock for this area" for the pincode for the main city where flipkart and ekart has got their own hub for decades. It is very strange while Flipkart is showing like this while allother online sellers do their delivery without any issues in all these areas. Customers are expected get more delivery coverage areas while the company getting grown but reverse is happening here. I had tested with the pincode of the Flipkart corporate office in Bangalore (560103) and very disappointing thing it is showing the same "Not deliverable/out of stock for this area" message for their corporate office PIN Code itself.

Then what is the meaning of the items showing in stock in the website??? Last many times I had to purchase many items from Amazon and other sites due to the same reason. Items showing out of stock message we can understand, but items showing in stock and showing not deliverable once all the PIN Codes are entered is not at all acceptable.