Here goes my story -
A few days ago, I was looking for a list of unreserved trains between a couple of stations, and to my surprise, the official irctc website doesn't provide any info on unreserved trains. Nor did I find any useful apps.
However, the IRCTC API gives out all of these info. Just that the irctc website screens all of the unreserved train info out.
"OPEN SOURCE" struck me, and I thought why not create it myself. And here you go! Voila!