Consider the following statements:
S1: Delhi generally receives monsoon showers from Bay of Bengal Branch of Monsoon.
S2: Monsoon winds, unlike the trade winds are steady winds that are not pulsating in nature.
S3: Withdrawal of monsoon is a rapid process all over India.
S4: During winter, some amount of rainfall occurs on Tamil Nadu coast due to North-east trade winds.
Which of the above statements is/are correct?