gimp image editing

[kattamurisangeetha@gmail.com]

How to edit the background image of gimp with red mark as per attached image. The border line between text to be adjusted . How to di this. Please help me. Thank you

[rich2005]

Your screenshot is helpful but does not give any indication of image size so my suggestion:

Select a small portion of horizontal line and copy it. Edit -> Copy. You can close the selection now or later if you wish.
The copied selection becomes the very first brush in the brushes dock, the 'clipboard image' brush
Make a new layer under the text, and with the paint tool draw a connecting line. Click on the start point. Hold the shift + ctrl keys to draw a horizontal line. Click on end point.
Use the eraser tool to delete the part of the line around the text.

40 second example. https://i.imgur.com/fixWITT.mp4

[PixLab]

Multiple options to do it.
One more solution
On a transparent layer, make a Rectangle selection with rounded corner, and stroke the selection then erase the part near BRL

45-second video > https://imgur.com/YsAR86m