Sexing spotted doves
First I think that is a Western Spotted Dove (Spilopelia suratensis), now splitted from the Eastern spotted Dove (Spilopelia chinensis). In your area there should be both species but the red iris and eye-ring should indicate the Western. Sexes are alike so there are no signs you characteristics you can check (source, handbook of the bird of the world, which is the most updated and reliable source in many occasions). Males sing much more often than females (so you can observe this behaviour) and in many species, but I dunno about this one, is the male providing food to the female...so I think your guess is right!

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