Lungphum inkhawm Upa F. Aihranga kaihhruaia neihah Rev. Dr. CL Hminga chuan Mizoram Missionary hmasa Pu Sap Upa leh Pu Buanga te kum 1903-a Serkawna an inbenbel ni April ni 29 taka Biak In sak vawi thumna tur lung an phum thei chu thil chinchhiahtlak a ni a ti a, Biak In hmasa ber chu kum 1927 January thla khan Sap Upa leh Pu Buanga te sak \an a ni a, chumi hnu kum 1996-ah Biak In 2-na sak leh a ni. Biak in thar hi Rs 6,86,00,000 senga sak tur a ni, Biak In lo ding hmasa tawhte ang bawkin Sap Upa leh Pu Buanga te hriatrengna Biak In a ni dawn a ni.
