48 1956 , 1972 , भारताव ब्रितिस खुंथायनि समाव , बेयो साबसिनथार हांसो गावनाय जिरायखुलिमोन , नाथाय 1956 मायथायाव , बेयो दाव थाखुलि फोसावजादोंमोन आरो उनाव 1972 याव बेयो हादोरारि हाग्रामा फोसावजादोंमोन ।
During the period of British rule in India it was known as the Best Duck shooting resort but in the year 1956 it was declared a bird reserve and later in 1972 it was declared a National Park .