Answer

The Bhaktāmbar Stotra was composed by Acharya Manatunga.

Explanation

He is a revered Jain acharya, and the stotra is dedicated to Lord Rishabhanatha (Adinath), the first Tirthankara.

Spiritual Understanding

The Bhaktāmbar Stotra is cherished in Jain tradition for its deep devotion, faith, and praise of the Tirthankara’s greatness.

Takeaway

So, the author of Bhaktāmbar is Acharya Manatunga.