**No. A married woman is not allowed to remove mangal sutra for the sake of convenience.** As you have asked in the question, we see many people who do not wear mangal sutra to offices and to some social gatherings. But it is not allowed to remove it by her own will. This also applies to men who are not wearing Yagnopaveetha(sacred thread). It is not an ordinary jewel or a necklace to do so. There are very few exceptions to remove it from her neck when her husband is alive. They are- 1. When her husband asks her to remove it to wear any other jewel and ties it again without any delay . 2. When mangal sutra is not in a good condition. i.e when it has become very thin due to wearing for a long time. A root of turmeric attached to an yellow thread should be wore before removing the damaged mangal sutra. 3. It can also be removed by a sadguru in an emergency i.e when it is damaged. A mangal sutra should not be removed from a woman's neck just as a yagnopaveetha from a man's body. These are sacred and should not be removed at any time especially for the sake of convenience. If a women does so, it is said that it gives some dosha and effects the health of her husband. Suvarna danam(donation of gold) should be performed to remove that dosha. **Source**: [This][1] YouTube video (Telugu). [1]: https://www.youtube.com/watch?v=pEs-LO6mifc