mature river meaning in Hindi

Examples

1. Other lakes are found in endorheic basins or along the courses of mature rivers.
2. According to proto-historian Michel Danino, in ancient times a mature river flowed into the Ghaggar-Hakra River valley and into the Rann of Kutch, which he identifies as the Rig Vedic Sarasvati river.
3. The river starts as a trickle from the marshy dambos ( the Munyanshi Swamp is a tributary ) and with little slope to speed up river flow, it meanders south-eastwards sluggishly and within 50 km has the character of a mature river.