I had been scouring Chawri Bazaar for almost four hours to find the perfect card for my brother’s wedding. Translation: something that was unique (the entire market was filled with pretty much the same kind of stuff), good quality, non-blingy and wouldn’t cost me a kidney. Having nearly given up, I spotted a tiny, inconspicuous lane (it’s right in front of Pink Ladoo which you can find via Google maps) and came across the last tiny shop there—jackpot.
Run by Sahib, Khanna Mica Traders (don't get confused by the name, it's a full-fledged card store) is located at the end of that lane and albeit tiny, the collection here was everything I was looking for. From two and three leaf cards to boxed ones, they had everything.
PS. It’s a tad difficult to get good pictures as he doesn’t allow it, given that his collection is limited and keeps rotating.