Almost everyone knows about OLX in India. Buyers can browse through the ads, and they will be able to contact you if they find your offer interesting. OLX also has a popular mobile app.
Quikr is also very popular. This is one of the older companies in India which entered accessible online classified ad business and made it big.
You can easily sell bikes online via click.in. In addition to regular buy-n-sell stuff, this website provides a section on jobs.
Along with selling a bike online, Clickooz allows you to post free ads to buy and sell flats, electronic items, mobile phones, garments, cars, services, etc.
Provides free classified ads for vehicles. They are also providing free ads for community events, rentals, jobs, personals, pets, real estate, vehicles, etc.