I believe you can get an e-visa online almost instantly
I would suggest to carry all the documentation needed with visa application filled and go to the office personally. Because of pandemic, website says we have to send documents by mail only. But if you are near to the consulate office, you can visit them and there are Consulate personnel who will be able to help you.
The atl-India consulate staff were very helpful, you can visit them in person at their office Monday-Friday and get the clarifications or should answer the phone on working days. I had some letters needed and they were able to facilitate and provide them without any prior appointment in a short notice.
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