Manimajra has been legally renamed as Sector 13 by UTGovernment.  Here is a link i provide you pls look at this and update your maps. Link:  https://www.hindustantimes.com/chandigarh/chandigarh-s-manimajra-is-now-sector-13/story-ploFPCA4UGpDu9ksUxLtdL.html .