Wikipedia
Stotra or Stotram () is a Sanskrit word, that means "ode, eulogy or a hymn of praise". It is a literary genre of Indian texts designed to be melodically sung, in contrast to shastras which are composed to be recited.
A stotra can be a prayer, a description, or a conversation, but always with a poetic structure. It may be a simple poem expressing praise and personal devotion to a deity for example, or poems with embedded spiritual and philosophical doctrines.
Many stotra hymns praise aspects of the divine, such as Devi, Siva, or Vishnu. Relating to word "stuti", coming from the same verb, stu (to praise), and basically both mean "praise". Notable stotra are Shiva Tandava Stotram in praise of Shiva and Ram Raksha Stotra a prayer for protection to Lord Rama. Stotras are a type of popular devotional literature. Among the early texts with Stotras are by Kuresha, which combine Ramanuja's Vedantic ideas on qualified monism about Atman and Brahman (ultimate, unchanging reality), with temple practices.
Stotram is also commonly used in Christian hymns, worship and prayers describing the praise and personal devotion to Jesus Christ in several South Indian Christian belief and tradition.