▁sub - m icro ▁phys i ographic ▁regions ▁occup ying ▁the ▁northern ▁portion ▁of ▁Bir b hum ▁district . ▁There ▁are ▁hills ▁along ▁the ▁western ▁boundary ▁with ▁J h ark hand . ▁These ▁are ▁extensions ▁of ▁Raj ma hal ▁hills . ▁ ▁Ba id h ara ▁Bar rage ▁across ▁the ▁Bra h man i ▁has ▁a ▁capacity ▁of ▁ ▁, ▁ ▁N al h ati ▁I ▁CD ▁Block ▁is ▁bounded ▁by ▁Mur ar ai ▁I ▁and ▁Mur ar ai ▁II ▁CD ▁Block s , ▁on ▁the ▁north , ▁N al h ati ▁II ▁CD ▁Block , ▁on ▁the ▁east , ▁R amp ur hat ▁I ▁ ▁and ▁R amp ur hat ▁II ▁CD ▁Block s ▁on ▁the ▁south ▁and ▁ ▁Mah esh pur ▁and ▁Pak uria ▁CD ▁Block s , ▁in ▁Pak ur ▁district ▁of ▁J h ark hand , ▁on ▁the ▁west . ▁ ▁N al h ati ▁I ▁CD ▁Block ▁has ▁an ▁area ▁of ▁ 2 4 9 . 7 1   km 2 . ▁It ▁has ▁ 1 ▁pan ch ay at ▁sam ity , ▁ 9 ▁gram ▁pan ch ay ats , ▁ 9 2 ▁gram ▁sans ads ▁( v ill age ▁coun c ils ), ▁ 9 9 ▁mou zas ▁and ▁ 9 4 ▁inhab ited ▁villages , ▁according ▁to ▁District ▁Statist ical ▁Hand book ▁Bir b hum ▁ 2 0 0 8 . ▁N al h ati ▁police ▁station ▁serves ▁this ▁block . ▁Head quarters ▁of ▁this ▁CD ▁Block ▁is ▁at ▁N al h ati . ▁