Here is the full list of all 36 Karmasutra achievements.
Achieve one of Aditi's Good Ends.
Achieve one of Aditi's Bad Ends.
Achieve one of Annavere's Good Ends.
Achieve one of Annavere's Bad Ends.
Achieve one of Einya's Good Ends.
Achieve one of Einya's Bad Ends.
Achieve Einya's Secret End.
Achieve one of Hansa's Good Ends.
Achieve one of Hansa's Bad Ends.
Achieve one of Kamala's Good Ends.
Achieve one of Kamala's Bad Ends.
Achieve Kamala's Aatmaon End.
Achieve Lydria's Ending.
Achieve one of Lydria's Bad Ends.
Give all scrolls to Mysa.
Spend a lot of Jivas at Niija's Shop.
Finish Nisha's story.
Witness all of Prisha's teachings.
Achieve one of Saanvi's Bad Ends.
Achieve Saanvi's Ending.
Achieve one of Syll's Good Endings.
Achieve one of Syll's Bad Endings.
Complete Takal's story.
Complete the Nirvana Ending.
Complete the Samsara Ending.
Overcome the first pillar.
Overcome the second pillar.
Overcome the third pillar.
Overcome the fourth pillar.
Overcome the fifth pillar.
Overcome the sixth pillar.
Overcome the seventh pillar.
Complete Vari's route.
End a battle with a seduction for all 20 enemies.
Complete all final endings, except the true ending.
Complete the true ending.