The Indian Space Research Organisation (ISRO) is considering an alternative landing date of August 27 for the Chandrayaan-3 mission if conditions are not favourable on August 23. ISRO has taken precautions and learned from the mistakes of the Chandrayaan-2 mission, strengthening the legs of the Vikram lander and conducting rigorous testing. ISRO is prioritizing a smooth landing and will delay if necessary, even though it may result in a loss of four Earth days for rover and lander operations.

from Times of India https://timesofindia.indiatimes.com/home/science/if-factors-unfavourable-we-will-postpone-landing-to-august-27-senior-isro-scientist-on-chandrayaan-3/articleshow/102918364.cms