I had gotten a link to First rewards from my netbanking login even before this post came up here in TF. My existing salary account was upgraded to IDFC Select account (with Select DC) sometime in Jan. To test out the First Rewards, I made a txn of ₹1100 via the Select DC around 3rd Feb.. This was my only txn via my IDFC DC through the entire month. I seem to have received the Welcome offer 4k points on 28th Feb which I only noticed 3-4 days back. Was checking the portal throughout Feb for the points credit but since nothing was happening, I had eventually given up on it. Also, since the portal has a disclaimer that its still in beta mode I had pretty much concluded that I may not get any points. Anyways I did get the points at the end of the month.. a good 25 days after my actual txn.
Post this 4k points & its redemption, I have made couple of more txns around 8th of this month too. No further points credited yet.. so will wait & see.. Will update here too for the benefit of others wrt subsequent progress.