Update duckdb index files

Srini99--TamilQA/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:f45138bf165803af0d5e26818a044debf8f4347fa850a5f9c2da5e0756a626df
-size 3420160
+oid sha256:742001cb5c9cc0a8566e5696a0c1245e5a050dfa1e1e271fdfbb8c06b1815098
+size 3682304