Division of the seasons

Six seasons of two months each from Caitra: spring (vasanta, also called madhu, when flowers and fruits flourish) in Caitra–Vaiśākha, summer in Jyeṣṭha–Āṣāḍha, the rains in Śrāvaṇa–Bhādrapada, the heat-causing autumn in Āśvina–Kārtika, the very cold hemanta in Mārgaśīrṣa–Pauṣa and śiśira, when frost falls, in Māgha–Phālguna.