According to figures, the city reported 463 rape cases till April 15 this year as against 179 during the same period last year.
Of the 463 cases, police statistics said 178 accused were "friends and lovers" followed by neighbours in 115 of the cases.
The city has witnessed a surge in crime against women with rape cases growing by 158 per cent this year while molestation incidents witnessed a six times growth and eve-teasing cases rose by eight times.
A total of 973 molestation cases were reported this year, as compared to 139 last year, while eve-teasing cases increased from 49 to 433. 85 per cent of rape cases this year have been worked out while the figures for molestation and eve-teasing are 86 and 95.8 per cent, a police official said.
The break up of other accused in rape cases are -- 15 employers or co-workers, 12 family members, 10 fathers and two step fathers, nine husbands and ex-husbands, nine brothers-in- law and two fathers-in-law, eight landlords and three tenants, five cousins, three teachers, two doctors and a tantrik.