Field experiments were carried out to determine the effects of seeds collected from different parts on growth, yield and yield attributes of lentil. Lentil seeds of three varieties (BARI Masur-2, BARI Masur-3 and BARI Masur-4) were collected from different parts i.e. P1: collection of pods from upper parts of lentil plants, P2: collection of pods from middle parts of lentil plants, P3: collection of pods from lower parts of lentil plants prior to harvesting. All the seeds were stored in earthen pot until conducting the laboratory study. Non-significant variation was observed in three varieties of lentil for most of the parameters studied. The highest plant height, pods plant-1, seeds pod-1, 1000- seed weight and seed yield were observed in BARI Masur-4 and the lowest in BARI Masur-2. Seeds collected from middle parts of lentil recorded the highest pods plant-1, seeds pod-1 and seed yield (804 kg ha-1 in 2004-05 and 838 kg ha-1 in 2005-06). BARI Masur-3 seeds were collected from middle parts and BARI Masur-4 from lower parts recorded higher seed yield (1003 kg ha-1 in 2004-05 and 1012 kg ha-1 in 2005-06 for BARI Masur-3 x P2, 1061 kg ha-1 in 2004-05 and 856 kg ha-1 in 2005-06 for BARI Masur-4 x P3). Key words: Lentil; Seed collection; Variety; Seed yield. DOI: 10.3329/bjsir.v45i3.6528Bangladesh J. Sci. Ind. Res. 45(3), 197-204, 2010