Rearing termites in captivity is very expensive and usually you can keep them alive but they usually fail to produce alates. Field harvesting alates from Macrotermes mounds with trap tents would make more sense.
I have developed incipient termite colonies in the laboratory from the dealates of Odontotermes sp, Macrotermes sp, Microcerotermes sp. I can be possible but time taking and need particular climatic condition such as humidity, temperature and moisture.