Answer

In Jain tradition, the sister of Shalibhadra is commonly known as Subhadra.

Regarding Atimuktakumar, I cannot confidently state the sister’s name unless you specify the exact story or scripture/context you are referring to.

Explanation

Shalibhadra is a well-known Jain figure remembered for his great wealth, detachment, and eventual renunciation. His sister is traditionally referred to as Subhadra.

If you are asking whether Atimuktakumar and Shalibhadra had the same sister, or asking for a comparison between their family stories, please clarify the exact question.

Takeaway

Shalibhadra’s sister: Subhadra. For Atimuktakumar, please share the story reference or context so I can answer accurately.