To apply for a fresh Indian passport (if you have never possessed a passport earlier), re-issue of passport (if your present passport of 10 years validity has expired or will expire in next 12 months), duplicate passport (if your present passport is lost or damaged) you can apply online. For Online Passport log on to http://passport.gov.in. The residents of the jurisdiction of the regional passport offices are only eligible to apply online through this website. Through this site you can register your application with the respective Passport offices.
After logging on to the website you can fill in the application form for passport. Once the application is filled you can take print out, there will be some columns which you cannot fill online. Those columns can be filled through hand after taking print out of application form. You will have to submit the completed application form along with fee and supporting documents on the appointed day and time in the passport office. The online system will inform you the date and time of appointment and will also be printed on the application form.
You should arrive at the regional passport office about 15 minutes before the appointed time and proceed to the respective counter. For online applications you do not need to obtain a token number for submitting at the counter. You will not have to wait long in the queue.
You can read the information on the website of respective passport office carefully, before you register your application online. You can know the fee structure, instructions to fill form and how to apply. The documents required, number of copies of application form required can also be known through the online website. You should apply online only when you are sure that you will be able to produce all the necessary documents on the date of appointment. If you are late in reaching Passport office for any reason on the day of appointment, then you need to contact the passport officer immediately, then you may be allotted a slot in the queue as soon as it becomes available. Presently the online registration of passport application for general public is available at around 37 regional passport offices.