Services of e-Visa involves completely online application, you can apply with hassle free and secure online payment gateways. You don't need to visit embassy and wait for 2-3 more visits over there. You can direct apply through online from your home country even.
Signup and apply for online application, you need to fill online application form with your full credentials as per the requirement of the form. It depends on the nature of your visit, an Indian visa requirements, will include essentials including to completed the application form.
Need to upload the documents ( photographs of the traveller and passport photo page scanned )
On next step, you need to submit online fees.
Travellers can also track the progress of their application forms while planning for additional travel requirements.
Once your Visa get granted from government of India, you get your e-Visa on your email.
Note: Travellers can select their country/region of the travel document. People with dual nationality can choose their nationality according to their passport, which they are using for the travel purpose.