Was able to match DL Gold to TK Elite. My email was in May and explained that TK had great connection times to South Asia and that I wanted to give them a try.

Haven't received the card and have since decided that A3 would be a better long-term *G program. On a recent SQ Y itinerary, I was able to use my TK account for *G benefits (such as lounge access, priority baggage, boarding) by having a printout of my account profile. I banked the miles to A3 without a problem.

I will likely be crediting a short 9W intra-India flight to TK soon just to get some miles in the program to get the card from TK.