In the 'create a lead' page, two options are available - Individual and organization.
Fill in the information about the lead under tabs on the left side with icons.
Then, click on save.
Fill in the 'Custom lead attributes' details as it is a mandatory field. And, then again click on 'save'.
Hurray!!! You have successfully created a lead now.
The newly created lead can be viewed under 'My Leads' tab.