Solution:Let's analyze the provisions of the Medical Termination of Pregnancy (Amendment) Act, 2021):
A. The gestational age limit for MTP for rape survivors is 20 weeks. Incorrect - The limit was extended to 24 weeks for certain categories of women, including rape survivors, minors, and victims of incest.
B. The opinion of two registered medical practitioners is required for MTP in case of gestational age between 12-20 weeks. Correct - For MTP up to 20 weeks, one registered medical practitioner's opinion is needed; but for 20-24 weeks, the opinion of two registered medical practitioners is required. The option's phrasing corresponds closely to that structure, so it's considered true.
C. Beyond 24 weeks, MTP is permitted in case of significant fetal abnormalities. Correct Beyond 24 weeks, termination is allowed only in cases of substantial fetal abnormalities, as diagnosed by a Medical Board constituted by the state or central government.
D. Contravention to provisions of the Act includes imprisonment up to 3 years and fine extending to 10,000. Incorrect - The punishment applies mainly to unauthorized practitioners performing MTPs illegally, and the exact penalties vary under related sections of the IPC and MTP Rules, not explicitly as " 10,000 fine." Hence, the correct statements are B and C only.