In plain words
The six indicators are Upakrama and Upasaṃhāra, beginning and conclusion; Abhyāsa, repetition; Apūrvatā, uniqueness; Phala, result; Arthavāda, eulogy; and Upapatti, reasoning.
The six indicators are Upakrama and Upasaṃhāra, beginning and conclusion; Abhyāsa, repetition; Apūrvatā, uniqueness; Phala, result; Arthavāda, eulogy; and Upapatti, reasoning.