Hi Isha,

Among these 3 institutions Skylark institute of travel,Delhi is best.

The skylark institute of travel, Delhi is one one the famous private institution offering different courses in the field of travel & tourism.

Its placements are also good.

The admission in this institue is based on your 10+2 qualifying marks and the PI marks conducted by the institute itself.

This course of travel & tourism is a 6 months diploma course with average fee structure of  1-1.5 lakhs in total.

For more details i will suggest you to check the official website of skylark institute also.

Good luck.