India has made a major overhaul to it's Income Tax filing website and with it its offline e-filing utilities which are now available only for Windows and Mac.

Earlier the utility was in Java and was available for linux. Now it's been replaced with electron wrapper over the website and so I don't know why it's not available for linux.

Anyways I was able to run the windows e-filing utility using Wine.

I'm on Arch with GNOME 40 and used bottles a Wine manager to run the e-filing utility. Interestingly only the bottles from the default Software (App store for GNOME) worked for this and not the ones from AUR (incl. Git version).

1. I followed default setup options for bottles as detailed in their first-run documentation.

2. Created a software bottle to run the ITDe-Filing Setup 1.0.16.exe via Run executable which runs the e-filing utility for the first time and also installs it in the programs.

3. But installed ITDe-Filing couldn't be run from the Programs(wine process kills itself) and so I had to make some changes to the settings in the Preferences.
4. I enabled Use a virtual desktop to help with X-Wayland quirks.

5. Launched ITDe-Filing from the programs and immediately clicked on the ITDe-Filing icon on the virtual desktop before it closes itself in a second or two.

6. This launched the ITD-eFiling utility on the virtual desktop.

Note: I noticed CPU being turboed while running the e-Filing utility, I don't know whether it's a bug with the utility itself or a quirk when it is used with Wine. But I like to run my compute systems under low power profile unless absolutely necessary.

Since filing the tax would take several days, I do not want my CPU to be on full power all that time, So I'm not going to use this utility and instead use their web version as I see no difference.