Hey sorry for late reply . i was on rishikesh haridwar trip . Exit from Pf 1 and go to zero road depot there are many buses else exit you can go to civil line side but limited buses , only buses from lucknow which go to shaktinagar you will get from there . Else break journry go to mirzapur and then take bus for shaktinagar OR go to varanasi from allahabad and from varanasi there are 50+ buses abvl