Here is a comprehensive list for the best Air Conditioners. as you have not specified the purpose and capacity, I have gathered that you need a moderate one. If you need higher capacity ones, you can still look at the same companies.
1. Samsung AR18MC5ULGM Split AC.
Features include Fast Cooling Mode that cools down the room really fast by running its compressor to the maximum level along with a fast fan speed and all it needs for cooling down is 30 minutes. To prevent overloads, even without a separate voltage stabilizer it keeps the performance stable with its anti-corrosive coating feature that can endure extreme heat. There are
Three Care Filters that help in keeping the room air fresh and maintain the interior of the machine clean. Apart from its ability to capture dust, the unique coating of this AC is capable of eliminating 99% of viruses, bacterias and allergens that pass through the intense mesh filter. Apart from this, there is even an Auto Clean function that keeps automatically running a fan in order to remove the accumulated dust and moisture within the heat exchanger especially when the air conditioner has been turned off. One of the best features of this AC is its capacity to Dehumidify that never allows any dampness or fogginess staying back in your room. Last but not the least, this model of AC from Samsung can keep cooling your room consuming a very low wattage, and thus it is an energy saver as well as economical.
2. Voltas 1.2 Ton 155 CY Split AC.
This split AC from Voltas is made of Aluminium Condenser Coil, with 1.2-ton capacity and has a 5 star Energy Rating
The Rated current for Cooling is of 5 Amps and its EER is W/W 3.55. It needs a Power supply of V/Hz/Ph 230 / 50 / 1 phase. It consumes Voltage of 230 Volts and its Wattage is 1126.
3. Micromax ACS18ED5AS01WHI Split AC
This 1.5-ton capacity Split AC from Micromax has a 5 Star Energy Rating along with 5 years comprehensive warranty. The features include a 3 in 1 filter of Anti VOC/Vitamin C/Catechine and a Hydrophilic evaporator that keeps dampness away from your room. It's 30 feet air flow keeps even a bigger room cool and its remote with luminous button makes it work from the same distance. There are a Turbo cool mode and a hidden display, that keeps you updated about the details of the AC whenever you reask for it. The AC has a Compressor model of PH290G2C-7KUL (GMCC), a Micro Motor of 12B326 A1E, the Capacitors of 55+3 Mfd (EPCOS/Globe). It has a Parallel flow condenser as well.
4. LG LSA3SP5D Split AC
With a 5 Star Energy Rating, this 1 Ton Split AC from LG is equipped with features like and 2-D cooling auto air swing, monsoon comfort, chaos mode, fuzzy logic, 3M micro protection filter, sweet dreams mode, dual protection filter and auto clean functionality.The Voltage and Wattage of this AC are 230V and 950 W respectively.
5.Carrier Esko 18K Split AC
Carrier has been one of the oldest manufacturing company of AC. This model from Carrier has earned 5 Star Energy Rating that comes with one Year warranty on all its functional parts of AC other than the aesthetic ones (the plastic ones). It has a Copper made Condenser and its amazing features include a rotary compressor, auto restart, dust filter, Dehumidification, anti-bacteria filter. The Package contains an IDU, an ODU, an Inter Connecting Pipe, a Remote, a Remote holder, 3 Manuals and 2 Batteries.