While filling in your application, you should fill your surname before your first name. Do not use abbreviations in the First and the Last name/Surname. Non-Individuals should write their full name starting from the first block of Last Name/Surname. Fill in details such as Title, Last name/surname, First name, Date of Birth, email id , PAN number, whether citizen of India and captcha code. Mention 10 digit PAN correctly. The 5th alphabet of your Permanent Account Number is the first alphabet of the registered surname of your name.