The Indian Constitution does not have a "latest" article because it is a codified document, but its last article at the time of enactment was Article 395. The constitution currently has 448 articles organized into 25 parts and 12 schedules, with some articles being added, repealed, or amended over time, as explained by Testbook, Wikipedia, Vajiram & Ravi, and GSCE Publication. 

Original structure: When adopted in 1950, the Constitution had 395 articles, 22 parts, and 8 schedules. 

Current structure: Through various amendments, the number of articles has grown to 448, organized into 25 parts with 12 schedules. 

Final original article: The final article in the original constitution was Article 395, which repealed earlier acts of the British Parliament and brought the new constitution into effect.