You can maintain your wall mounted Mandir by dusting it regularly using a soft, dry cloth. This will prevent the deposit of dirt and dust and help keep the Mandir clean. Avoid using a wet cloth and any harsh chemicals as they may damage the finish and color of your Mandir. Clean the brassware by soaking it in hot water with a little detergent for 10-15 minutes. If it is still sticky, use toothpaste to scrub the brassware with a brush.