Three species of the cosmopolitan orb-weaving spider genus Tetragnatha Latreille, 1804 from India are redescribed, diagnosed, and illustrated. We provide detailed redescriptions, diagnoses, and illustrations of both sexes of Tetragnatha geniculata Karsch, 1892 and Tetragnatha lauta Yaginuma, 1959, and of the female of Tetragnatha serra Doleschall, 1857, the last two species being recorded from India for the first time. Additionally, Tetragnatha jaculator Tullgren, 1910 is also recorded for the first time from India, and Tetragnatha chamberlini (Gajbe, 2004) is proposed as a new junior synonym of Tetragnatha javana (Thorell, 1890). The current distributional records of these species from India are mapped.