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I could not get your link to compare with no. three to work - what was the species name that it purported to be? Also, re: no. two - i agree that the forewing spots in yours were far less prominent than in the example shown, but the hindwing spots were a good match. Also, I do not know of any other nymphalids in India that have such a prominent vertical white stripe extending across both wings. Please bear in mind that (1) yours might be a different subspecies from the example shown, and (2) butterflies, like humans, can exhibit a great deal of individual variation.
I do not know about any seasonal variation, but as suunto mentioned in an earlier post here, many insect species show a good deal of individual variation in color pattern. Sometimes, this also may be related to specific geographic areas within their range.