User talk:223.191.17.240

December 2016
Hello, I'm Materialscientist. I wanted to let you know that one or more of your recent contributions to University of Kalyani have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Materialscientist (talk) 10:43, 27 December 2016 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself or logging in with an existing account so you can avoid further irrelevant notices.

September 2020
Please do not add or change content, as you did at Chengdu J-20, without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. Binksternet (talk) 03:38, 3 September 2020 (UTC)