Just wanted to share my experience.
The main problems I encountered were with my photo and payment. Few helpful tips that I had already read on this blog:
1. Chrome works the best for the e-visa application on windows
2. Use gmail account to receive activation email
3. Click a photo using your camera for the visa photo and passport scan
4. Using a visa card to pay
I struggled for a couple of hours with my photo before i landed here. I clicked a photo of my existing passport size photo (had a hard copy), cropped the additional stuff to just focus on my face (80% face and 20% shoulders), resized the photo in paint to 413*532 pixels and uploaded the pic... and it worked
Though the background was white in the original photo, it turned greyish once i clicked a picture of it and transferred to my computer so fingers crossed!
i entered all other details, have my gmail id and quickly received the activation email after which I struggled to pay. Clicking on the link in the email took me to the page but it said application not activated. I tried some other suggestions like going to the e-visa website and directly clicking on the payment page and entering the activation code. It would take me upto Payment confirmation and on clicking 'Pay now' gave an error message 'Initialization failure'. When i tried paying again it would said 'Paid application'. I tried using incognito session in Chrome, typing the link instead of pasting it, using other browsers and nothing worked.
I called the helpline who were helpful. He said to fill in another application, make sure to click on the link received in the email (even if it says account not activated), go to the payment page directly and pay. Voila! I was able to enter my card details and received payment confirmation email. Also i made sure that the link opens in Chrome instead of another browser.
Now waiting on the visa!