 "Janya" ragas are classified into various types based on a variety of features.Ragas that omit (varjyam, to omit in sanskrit) one or more of the notes of the scale ("swaras") of their parent "melakarta" raga, in the ascending or descending scale or in both, fall into this category.Different notes may be omitted from the ascending "arohana" and descending "avarohana" scale.