DNA profile generated using universal ITS 1 and ITS 4 primers for internal transcribed spacer (ITS) region analysis of 50 Fusarium oxysporum f. sp. lentis isolates; M = 1 kb marker; Lanes 1–13 (Uttar Pradesh), 14–19 (Bihar), 20–31 (Madhya Pradesh), 32–37 (Jharkhand), 38–43 (Chhattisgarh), 44–49 (Rajasthan) and 50 (Delhi) indicate isolates of Fusarium oxysporum f. sp. lentis