Hey Aditya,
All the things to do and places to see in Ooty ...
Dont miss the Nilgiris mountain railway you train ...
Check out Ooty lake ...
Botanical gardens
Rose garden
Thread garden
Visit Kalhatti falls which is 8 Kms from the Ooty city centre
Tiger hill which is 4 Kms from Ooty
Emerald lake
Never miss Kotagiri hill stations in coonoor ... which is 17 Kms from Ooty ...
Droog fort in Coonoor ...
The 250 feet sheer drop of Catherine falls in Coonoor ...
St.Stephen church is also a place not to miss ...
Kodaikanal Places to see are :-
Vattakanal falls
Dolphin nose point
Echo point Trek
visit local plant nurseries where you can find awesome plants ...
Go on a paddle boat ride in Kodaikanal lake ...
take a walk in coakers walk ...
Bryant park is worth a visit ...
lake side cycling is a must ...
Go to kurinji andavar temple ...
Don't miss pillars rock ...
Happy Travelling Bro!!!