Daikin is a supposed to be a good brand, I have a very bad experience( 5yr usage/Rs 55k local purchase) with Daikin 2Ton inverter model. Every summer it needs some/ or other kind of service, rattles occasionally, but cools efficiently. Initially changed bundled Stabilizer 3 times under warranty and later I was told that it needs higher capacity Stabilizer; But only after the warranty period is over. two times I paid 5k repair bills. But When works it cools perfectly and runs quite silent. Have used Carrier earlier which is no nonsense type of AC, Quite reliable as far as cooling is considered. Bit low on features.
I have 2 other LG inverter ACs ; no problems whatsoever since 4 years.
Service from bluestar is pretty good at office, would prefer Hitachi, Voltas ( all weather) or Bluestar whenever this Daikin needs service next time.
Buy slightly higher capacity if going for inverter ACs, Auto Clean option is handy and look for properly adjustable options for vertical and horizontal swings. Don't bother about hifi features like Wi-Fi etc, plasma filter may not be very effective but always better to have it. Better stick to known brands with good serviceability in your area instead of unknown brands. Look for Copper Wiring and 410a Gas as preferred options, buy extended warranty whenever possible.