I have a MacBook Air from 2017 and its original battery has started draining very fast. The Apple original battery will cost me around 17,000 INR so I am thinking of going for a third-party battery. Is that a wise decision?
Third-party batteries are fine but as others have mentioned, look for a reputable seller. Newer Tech NuPower, XINGLT, iFixit. etc. Any ‘official’ battery you get is likely going to be a second-hand one or a third-party one being sold as official anyway.