Seen in various colors, cultivated in gardens, during visit to Kodaikanal in Oct, 2008.

Reposting under Family Fortnight.

For id please.

These are all gardening hybrid varieties (Marketing trade name—Azaleas) eg, ‘Formosa’ . Actually these are hybrid between two Rhododendron spp. therefore, it is difficult to name taxonomically. So I suggest you to go through “Gardening Plant Books”.

Thanks for your feedback.
I can understand it is difficult to correctly identify Hybrids.
The closest I could think of on searching is Satsuki Azalea, Southern Indica Hybrid Azalea.