0000790359-97-000006 DEF 14A 1 19970419 19970317 NASD NBT BANCORP INC 0000790359 6021 161268674 DE 1231 DEF 14A 34 000-14703 97557328 52 S BROAD ST NORWICH NY 13815 6073376000 52 S. BROAD STREET NORWICH NY 13815 DEF 14A 1 000079035997000006-001-seq1-def-14a.txt DEFINITIVE PROXY STATEMENT FOR 4-19-97, NO PRELIMINARY REQUIRED