sumitroy said:Bro Read this "INSAT-4A was supposed to reach ‘end of life’ in 2017, and to replace it, ISRO sent GSAT-10 to the same orbital location with 432 MHz of capacity. As luck would have it, both satellites are working simultaneously."
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Only ISRO can tell us how much fuel is left on INSAT-4A and as there is no planned sat on 83E in immediate future so it's clear that enough fuel is left