Duplicate ledger error in tally 9, not opening.

Dear Shweta,

Just check that the balance under that ledger is transferred to original ledger if yes just delete this duplicate ledger

and it seems to me a technical probelm, irrespective of ledgers you create it should open....I suggest you speak to your Tally Service Provider as well

Yes ! it will not allow to open a duplicate Ledger and it will show error msg saying that it already exists.

As suggested Pl check with the Tally administrator/provider