Select the correct type of indeclinable word (Avyaya) for the underlined phrase in the given sentence.
"दरवाजे के बाहर कोई खड़ा है।"

In the given sentence, the phrase 'के बाहर' (outside) establishes a relationship between the noun 'दरवाजे' (door) and the rest of the sentence. Words or phrases that show a relationship between a noun/pronoun and other parts of a sentence are called Sambandhabodhaka Avyaya (Postpositions/Prepositions).