Delete from statement is running slow - only 3 records

Dear One and All,
I am running following statement but even after 10 mins of process, delete does not happen. Also, only 3 rows to delete . Kindly help me to resolve the issue.
DELETE FROM SD_YEARLY_PLAN_PROJECTS WHERE PLAN_TYPE_CD = 2 AND brn_no = 6;
Index is created on BRN_NO but still taking so much time.
Thank you,

When i runned from SQL plus prompt, it was deleted in nano second. I dont know why it took so much time from TOAD. Anywayz thank you to all.
SQL>delete from SD_YEARLY_PLAN_PROJECTS where PLAN_TYPE_CD = 2 and brn_no = 6;
3 rows deleted;
SQL>commit;
Issue is resolved.

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Delete from statement is running slow - only 3 records

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