User talk:Ponsankarraja

September 2019
Please refrain from making unconstructive edits to Wikipedia, as you did at Band-stop filter. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use the sandbox. Repeated vandalism may result in the loss of editing privileges. Thank you. SpinningSpark 10:46, 21 September 2019 (UTC)