Hi Suma,
Post the SQL you success run directly on Studio together with error message (even if is the Invalid column index error).
Check there if the parameters case is working properly... Is it really this confusing options:
p_GJAHR
S_BUKRS
p_base_ledger
Why not all lower or all upper? Anyhow you must test and find which option works according your modeling
Regards, Fernando Da Rós