Explanation:

- In February 2022, the Karnataka High Court addressed certain provisions of the Karnataka Police (Amendment) Act, 2021.

- The Act originally aimed to prohibit and criminalize activities associated with online gaming in Karnataka.

- The court declared these specific provisions unconstitutional, affecting the gaming industry.

- Option 3: Online Gaming

- The court's decision highlights concerns over restricting digital gaming avenues under the act.

- Option 1: Use of Dark Web

- This involves anonymity networks and wasn’t the focus of the case.

- Option 2: Gambling

- While related, the challenge mainly focused on online skill-based gaming.

- Option 4: Gathering at Nightclubs

- This is a social activity and wasn’t part of the court's ruling.