On your demand I will provide you Karnataka State Road Transport Corporation, Vellankani office address, so that you can book tickets and will also tell you way to books tickets online.

Here is the booking centre address

Karnataka State Road Transport Corporation
No. 33, Opposite St. Joseph Lodge, Main Road, Near Setc Bus Stand, Vellankani, Velankanni, Tamil Nadu 611112

Phone:-
094421 63902

If you want to book tickets online this process will also help you

Visit official site of Karnataka State Road Transport Corporation which looks like this

Karnataka State Road Transport Corporation



There at middle left hand side page
You can see section of book tickets now
There you can book tickets easily

Address:-
Karnataka State Road Transport Corporation
K.H Road, Shanti Nagar, Bengaluru, Karnataka 560027

Phone:-
080 2222 1321