How to read TOI articles without sub?

You can't.

After digital India, they are even charging to watch ads

Telegram

https://www.textis...t/  and https://12...o/  are useful to read paywalled articles

Annual subscriptions of TOI + another paper from the TIMES group costs Rs 2880. Per month costs is thus Rs 240. The newspapers will be at least 10 kg per month. Scrap merchants typically offer Rs 13/kg for newspaper in Mumbai. So, that's Rs 130 right there. Plus you'll save electricity that you'll need to charge your electronic device for reading it online. You will also avoid the wear-and-tear of your device. Most importantly, your eyes will also thank you in short term and long term. You will also be able to focus better and not get distracted by some app notification / shiny video ads. Lastly, newspapers come in handy for a lot of purposes (e.g. packing). I rest my case.