[What Bike]: first bike for a new bilker...

Hi pals!
Please help me choosing my first bike...
I am 23. I am 5'7 long and i weigh 57 kg.
My full n final budget is 70k.
Requirements:
1.good mileage and riding comfort
2. Stylish looks
3. Low maintanance.
And better post sale service.
All the opinions are welcome.