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Its sure that this is an Orange Blister Beetle, but I find something different here. The size is different and the antennae is longer. Spotted in the jungle.
There is also this paper here, which contains photos of some of the more common Himalayan leaf beetles (see p. 60 for Meristata):
www.kmnh.jp/wp-content/themes/kmnh_jp/im...
The species of Meristata are relatively easy to recognise by their colour patterns (though there are sometimes variations with reduced spots, that are more difficult to place). The only key available is that by Maulik, 1936 (link given above). There are also the genera Leptarthra and Spitiella that can be mistaken for Merisata in some cases (but not in the case of the M. sexmaculata).