No, there's no connectivity error.
bdb_dn2entry("FileName=imp_doc,FileName=rkyadav,FileName=development,dc=cdac,dc=in") => bdb_dn2id("FileName=rkyadav,FileName=development,dc=cdac,dc=in") <= bdb_dn2id: get failed: DB_NOTFOUND: No matching key/data pair found (-30990)
Try creating "FileName=rkyadav,FileName=development,dc=cdac,dc=in" as your first step. Then try creating "FileName=imp_doc,FileName=rkyadav,FileName=development,dc=cdac,dc=in" again, once that succeeds.