With dukaan it was more hope and hype. Remember it was khatabook and ok credit who has launched shopify like digital stores along with bookkeeping. Dukaan’s founder built the app for khatabook. At the time yc had funded on theme of shopify for india so investors hoped there is a market and somebody figure it out. Pagarbook got the money around the same time.
Reportedly, sequoia tried to hijack the deal. Lightspeed convinced the dukaan folks to take their money. In a typical Indian fashion, these guys just hoped there would be a big enough market and invested based on hype. The enthu died down after six months. Almost all of the above mentioned startups are no longer on a rocket ship trajectory (not dissing on them, but they are not in that high growth zone that was expected)