I contacted D-Link for firmware and found it. I had flashed wrong version of firmware in the past and couldn't find official firmware for A1 version anywhere on the internet. It's Indian specific model and yet firmware isn't listed on their site.
This one has Wan ethernet support luckily. Thought this would help someone.
Gdrive link
This one has Wan ethernet support luckily. Thought this would help someone.
Gdrive link
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