8 ▁to ▁specifically ▁protect ▁sw amp ▁de er ▁( C erv us ▁du v ac eli ▁du v ac eli ). ▁The ▁area ▁was ▁too ▁small ▁and ▁was ▁later ▁en larg ed ▁to ▁ 2 1 2   km 2 ▁and ▁renamed ▁as ▁D ud h wa ▁San ctu ary ▁in ▁ 1 9 6 8 . ▁Later , ▁more ▁area ▁was ▁added ▁to ▁the ▁San ctu ary ▁and ▁in ▁ 1 9 7 7 , ▁it ▁was ▁declared ▁D ud h wa ▁National ▁Park . ▁The ▁total ▁area ▁of ▁the ▁Park ▁was ▁ 6 1 6   km 2 ▁of ▁which ▁ 4 9 0   km 2 ▁was ▁the ▁core ▁zone ▁and ▁the ▁balance ▁of ▁ 1 2 4   km 2 ▁was ▁a ▁buffer ▁zone . ▁ ▁The ▁area ▁was ▁established ▁in ▁ 1 9 5 8 ▁as ▁a ▁wild life ▁san ctu ary . ▁On ▁ 1 ▁February ▁ 1 9 7 7 ▁wild life ▁san ctu ary ▁became ▁a ▁national ▁park ▁and ▁after ▁ 1 1 ▁years ▁in ▁ 1 9 8 8 ▁it ▁was ▁established ▁as ▁a ▁t iger ▁reserve . ▁D ud h wa ▁T iger ▁Reserve ▁lies ▁on ▁the ▁India - N ep al ▁border ▁in ▁the ▁fo oth ills ▁of ▁the ▁H imal aya . ▁D ud h wa ▁T iger ▁Reserve ▁was ▁created ▁in ▁the ▁year ▁ 1 9 8 7 – 8 8 ▁compr ising ▁D ud h wa ▁National ▁Park ▁and ▁K ish an pur ▁San ctu ary ▁( 2 0