There are approximately 100000 Indians in New Zealand. If you assume 40,000 households, (based on 2.5 ppl per household), and Sky penetration of 40% - reflecting generally higher than average socioeconomic status, that gives total Indian households that have Sky of 12,000.
Now say, of those 16,000 households, approximately 50% are interested in purchasing a cricket channel - exclusively showing Indian cricket, including matches played in India and overseas, would Sky make its money?
At $400p.a. or $33/month on top of the additional subscription (based on a completely unscientific poll of the Indians I've spoken to over the last 2 months and the price they would be interested in paying), that results in additional revenues of $3.2m a year. Would it be enough for Sky to set up a "cricket channel" and buy the rights for series played by the Indian cricket team?
Keep in mind that this is just the existing customer base, and doesn't include the number of people would sign up for this service. I heard Direct TV in the US started something similar and its customer numbers went up dramatically.