If you have come to kolkata to visit places definately visit kolkata dakshineswar kali temple.first you enter the temple you should worshipped kali maa who will fulfill all your wishes and give you blessings and then visit 12 mahadev and then there is also radakrishna mandir.Dont frget to visit ramakrishna parmhansh samadi where ramakrishna paramhansh used to stay and kali maa give darshan to ramakrishna parmhansh to make this temple.and there is long big ground in the middle of all these temples where if you remember shooting of tune mari entry dil me baji ghanti took place.and last put the water of ganges on your head and sit beside the ganges to see the beautiful sceneric beauty of ganges .if you want you can take a bath of ganges , it is said after taking bath all your sins will also be washed.there is also temple of maa sharda.and if you have come from outside kolkata there is hotels and guests house beside the temple