**Core Concept**
Menstrual regulation (MR) is a medical procedure aimed at inducing a menstrual period in a woman, often performed after a missed abortion, ectopic pregnancy, or to correct an early pregnancy that is not viable. It involves the use of medications to induce uterine contractions and expel the products of conception.

**Why the Correct Answer is Right**
Option C is incorrect because menstrual regulation can only be performed up to 7 weeks of gestation, not 12 weeks. This limitation is due to the increasing risk of complications and the potential for incomplete evacuation of the uterus as the pregnancy advances. The American College of Obstetricians and Gynecologists (ACOG) recommends that MR be performed within 7 weeks of gestation.

**Why Each Wrong Option is Incorrect**
**Option A:** Menstrual regulation does indeed come under the Medical Termination of Pregnancy (MTP) Act, which governs the termination of pregnancies in many countries. Therefore, this option is correct and should not be chosen as the incorrect answer.

**Option B:** Menstrual regulation is often associated with less blood loss compared to a surgical termination of pregnancy, making this statement true. However, this option is not the correct answer because it does not relate to the exception regarding the duration of menstrual regulation.

**Option D:** General anesthesia may not be required for menstrual regulation, as the procedure is often performed under local anesthesia or conscious sedation. However, this statement is not the correct answer because it does not address the exception regarding the duration of menstrual regulation.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that menstrual regulation should only be performed by trained healthcare providers in a hospital setting, as it carries risks such as incomplete evacuation, infection, and bleeding.

**✓ Correct Answer: C. Done upto 12 weeks**