In India, almost entire rainfall is brought in by the advancing south-west monsoon (June to September) and retreating northeast monsoons

Explanation:
The statement is true. In India, the monsoon season plays a crucial role in bringing rainfall to the country. The two main monsoon seasons that affect India are the southwest monsoon and the northeast monsoon.

1. Southwest Monsoon:
- The southwest monsoon is the primary monsoon season in India and is responsible for bringing the majority of the rainfall.
- It occurs from June to September and is characterized by the moist winds that blow from the southwest direction.
- These winds carry moisture from the Arabian Sea and the Bay of Bengal, which results in heavy rainfall in various parts of the country.
- The southwest monsoon covers most of India and contributes to the agriculture sector, as it is essential for the growth of crops.

2. Northeast Monsoon:
- The northeast monsoon, also known as the winter monsoon or the retreating monsoon, occurs from October to December.
- It brings rainfall to the southern and eastern coastal regions of India, including Tamil Nadu, Andhra Pradesh, and parts of Karnataka and Kerala.
- During this monsoon, the winds blow from the northeast direction, bringing moisture from the Bay of Bengal.
- Though the northeast monsoon contributes less rainfall compared to the southwest monsoon, it is vital for the regions it affects.

Conclusion:
In conclusion, the statement is true. The southwest monsoon and retreating northeast monsoon are responsible for bringing the majority of rainfall in India. These monsoons play a crucial role in the agricultural sector and are important for the overall climate and water resources in the country.