Tamil is considered to have the simplest grammar among the South Indian languages, with a relatively small number of grammatical rules and a lack of complex verb conjugations.

Tamil grammar is unique in that it does not distinguish between masculine and feminine genders, making it easier to learn and use.

Tulu, spoken in the southwestern part of India, has a relatively simple verb system with only two tenses (present and past) and a limited number of verb conjugations.

Tamil follows the Subject-Object-Verb word order, which is considered to be the simplest and most straightforward word order among languages.

Tamil has a relatively small inventory of phonemes, with only 18 consonants and 12 vowels, making it easier to pronounce and learn.

Malayalam grammar is characterized by the extensive use of particles, which are used to indicate various grammatical functions such as tense, aspect, and mood.

Tulu has a relatively simple case system, with only two cases (nominative and accusative), making it easier to learn and use.

Kannada follows the Subject-Verb-Object word order, which is considered to be the most common word order among languages.

Tamil has a relatively small number of irregular verbs, making it easier to learn and use.

Telugu grammar is characterized by the extensive use of prefixes and suffixes to modify the meaning of words and to indicate grammatical functions.

Tulu has a relatively simple tense system, with only two tenses (present and past), making it easier to learn and use.

Telugu follows the Subject-Verb-Object word order, which is considered to be the most common word order among languages.

Tamil has a relatively small number of grammatical rules, making it easier to learn and use.

Kannada grammar is characterized by the extensive use of honorifics, which are used to show respect to others.

Tulu has a relatively simple aspect system, with only two aspects (perfective and imperfective), making it easier to learn and use.