The study evaluated a training programme adapted from the WHO mhGAP to enhance suicide prevention knowledge, attitudes, and confidence among 436 Community Health Workers (CHWs) in India. A pre–post intervention design assessed outcomes at four time points using a structured questionnaire, analysed via repeated-measures ANOVA. Mean knowledge scores increased from 6.32 ± 0.14 at baseline to 11.12 ± 0.12 post-training, then levelled off at 10.10 ± 0.14 and 10.10 ± 0.13 at 6 and 12 months, respectively; similarly, mean confidence scores increased from 4.96 ± 0.11 to 7.84 ± 0.11, remaining at 7.28 ± 0.10 and 7.44 ± 0.10 at the same time points. Mean attitude scores changed slightly from 41.00 ± 0.38 to 42.72 ± 0.43 over 12 months, indicating increased negative attitudes. Knowledge and confidence scores across time points were statistically significant (p < 0.05); however, this was not observed for attitude scores. Improvements were associated with CHW cadre and educational status. Post-training, CHWs demonstrated sustained improvements in knowledge and confidence for identifying, referring, and managing suicidal behaviour over 12 months, with those having lower baseline scores improving uniformly following the programme.

International students frequently report suicidal thoughts and behaviours, but often do not seek help. We evaluated the feasibility, acceptability, and preliminary effectiveness of an adapted version of safeTALK suicide prevention training for international students. Eight workshops were delivered in Melbourne, Australia (N = 128; 62.5% female, M age = 23.4). In this single-arm study, surveys were completed pre-, post-, and three months post-training, and 17 participants completed follow-up interviews. The training was rated as acceptable, helpful, and safe. Linear mixed models indicated increased confidence to intervene and stronger intentions to refer individuals to formal help sources, with improvements sustained at follow-up. Suicide stigma showed a small post-training reduction that was not sustained. Suicide literacy only improved three months post-training. Attrition limited inferences about long-term effects. Qualitative feedback supported the training’s value but highlighted the need for further cultural adaptation. Findings support adapted gatekeeper training as a promising strategy for suicide prevention among international students.