[deleted] this actually depends, In India, we can apply for logo trademark and brand trademark. ClearTax website does this .. there is a fee of around 5k INR.
first, we need to apply and they will give us a TM certificate .. and for the next 3-5 years they will look for similar companies if they find it unique they will give us a title as REGISTERED we will get R certificate. there are a couple of videos in youtube on this.
but let's say if apple has TM and someone from India established a company on the same name and they sell actual apple fruits and not into technology and not using similar logo like the apple in such a scenario apple can not file a suit against that user cuz they are not misusing apple brand or logo. there are many scenarios but it's all about protecting your brand logo and image. (I'm not into intellectual property rights 😃 )
[deleted] you have to rely on someone like https://www.copyscape.com/ they will protect your content.