You need an embassy visa for Bosnia and Herzegovina if you have an Indian passport
Visa options for Bosnia and Herzegovina
Visitor visa
Travelers need a visa to visit Bosnia and Herzegovina for Business or Tourism. A paper or embassy visa is the only visa available for travelers visiting Bosnia and Herzegovina. The visa is typically a stamp or sticker added to the passport. Travelers must obtain this visa from a local embassy, consulate or visa center before traveling.
This is not offered by sherpa°.
Apply on the government site.