BACKGROUND Sentinel surveillance reported high human immunodeficiency virus positivity rates among men who have sex with men. The current study has described the high-risk behavior and self-reported sexually transmitted infection(s) among self-identified men who have sex with men. OBJECTIVE The present study was to find out the extent of high-risk behavior and prevalence of self-reported sexually transmitted diseases among self-identified men who have sex with men, registered with selected nongovernmental organizations in Delhi. METHODS A facility-based cross-sectional study was done among 250 men who have sex with men during March 2009 to February 2010, through consecutive sampling strategy. RESULTS Majority (80%) were anal-receptive, received money for sex (61%) and were involved in all types of sexual intercourse with men (oral-86%, manual-97%, and anal-94%). Consistent condom use with male partner was low (46%), most common reason (52%) for not using condom was, that either the condoms were not available or the partner objected. Self-reported sexually transmitted infection(s) was 41% in the past 12 months. CONCLUSIONS This study underscores the increased vulnerability of men who have sex with men of Delhi and need for sustained interventions.