This insect was found in my garden in India on the evening of August 07, 2019. It's rainy season here.
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This is a treehopper (an insect in the family Membracidae).
As Arthur J Frost mentioned in his comment above, it will be difficult to ID this specimen more specifically given the angle, lack of further info, and my personal lack of knowledge of Indian fauna.
You can find photos of O. tarandus here, with one copied below for reference.
1. Sharma, A. and Pati, P.K., 2011. First report of Withania somnifera (L.) Dunal, as a new host of cowbug (Oxyrachis tarandus, Fab.) in plains of Punjab, northern India. World Applied Sciences Journal, 14(9), pp.1344-1346.