In Kannada we would say Kaanunu Shaale.
In Kannada, brother-in-law is called "ಮವಳಿ" (mavaḷi) for the husband of one's sister, and "ಅಣ್ಣಾತ್ತ" (aṇṇātta) for the husband of one's spouse's sister.
In Kannada we would say Soorya.
In Kannada, we would say Dhanyavadagalu.
In Kannada, you say 'hello' as 'ನಮಸ್ಕಾರ' (namaskara).
In Kannada we would say Neelihallu.
In Kannada, we would say: Hajaraathi.
In Kannada, you can call sister-in-law as "ಅತ್ತೆ" (atte) if she is your brother's wife, and "ಸಹೋದರಿ" (sahodari) if she is your sister's husband's wife.
In Kannada we would say Kosu-gedde.
"Thanks" in Kannada is said as "ಧನ್ಯವಾದಗಳು" (dhanyavādagaḷu).
In Kannada we would say Bekku.
In Kannada we would say Tarka (ತರ್ಕ).
In Kannada we would say 'Nanu Chennagi Iddene'.