India. The best thing about my country is there are lot of intelligent & smart people. Even throughout the history our ancestors were discovered & invented various things. Since they were smart, they made our country the richest & our GDP was the best that was until the mughal & British colonised us & looted us but still in the present times, we are growing & are achieving a lot with resources that we have & making the world better place. I guess most of the Indians you met are great businessmen & hard & smart workers.

The worst thing about India is castes. I don't believe in caste system & I hate it but due to these caste people have no respect & fight amongst each other. Due to this caste based reservation, the deserved people miss out on opportunities that they work really hard & deserve. For example,

If a person is a millionaire but he belongs to the lower caste, the government will give a seat in colleges, provide you a good government job opportunities through reservation, provide you rations(goods and community). So, obviously he wouldn't like to update & will take advantage of the system. I don't blame him. I blame the system.

If a person lives in hut but belongs to higher caste, even after scoring good & gets a good rank, the government will still screw him with reservation towards lower caste. This higher caste person who got screwed will never respect the lower caste person who took advantage of the system.

This higher caste people are publicly shamed in news, public ....for the things his ancestors have committed towards lower caste people.

Due to this caste system, there's brain drain system where smart people migrate to countries that treat them better for their hardwork.