I talked to Swan Dahlia and they said one should not store dahlia in the fridge. They did say that you could keep them in a cool dark place with temp in 20s for a couple of months. I don't think they realized there is no cool place in Lahore in June outside the fridge with a constant temp in the 20s
Izhar I think Karachi climate is easier to manage bulbs. In Lahore we have several seasons. Just the summer is of different types starting of with warm and cool nights, then moving on to intense dry desert like heat, then the intense humidity with torrential rains and then the better part which we prefer to call Fall

All plants survive here but a lot don't thrive so well and nee extra protection in summers AND winter.