Here is the full list of all 15 Venba achievements worth 1,000 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.
Successfully make idlis.
Successfully “Launch” puttu
"Launch" a crumbling puttu.
Complete the park level.
Successfully make the biriyani.
Make the dinner spread.
Read all the texts in Venba's phone.
Real all the texts in Kavin's phone.
Successfully finish cooking the Chicken Rasam.
Successfully finish cooking the Dosas.
Make an oothappam without chillies.
Read the flavor text in every level.
Get Silicon Heartbreak, Doomscroll, Flavor text achievements.
Complete one recipe without messing up.
Complete every recipe without messing up once.