I don't think so...Actually when a show is a few months old, then promos are very rare...only twice in a month...it was the case with Pyaar Kii Ye Ek Kahaani and Madhubala- Ek Ishq Ek Junoon...Also, Mahadev(although I have stopped watching the show after Mouni Roy's exit) is doing very well and sorry if this point will hurt u guys but it is doing better than Amrit Manthan also...Mahadev is not going to get over guys...there is still alot to come...Ganpati is going to be born, then his marrige and all...there are many things to come!!
And about Alaxmi and the other shows, DSDHDSB has a particular topic and that is domestic violence so the show can't last forever!! And Alaxmi and MLTAK hvnt gained enough TRPs...it is not like the way Pyaar Kii Ye Ek Kahaani gained TRPs immediately after the beginning!! Those guys had a success party after a few weeks of the release!!
Amrit Manthan and Mahadev are doing good and so they won't be axed!! Also, don't forget that Mouni Roy's new show will be starting on Life OK- she is cast opposite Vivaan Bhatena, I think!! So just chill guys...they are axing shows and adding new ones!!
Don't worry and be happy!!
-Gauri