Which of the following pairs is NOT correctly matched ?

The correct answer is Kalbaisakhi - Assam and West Bengal . Key Points Kalbaisakhi is the local name for the violent thunderstorms and localized rainfall that occur during the summer season in West Bengal . While these storms are part of the larger Nor'wester system, the specific term Kalbaisakhi is traditionally associated with Bengal and Bangladesh , whereas in Assam , they are specifically known as Bardoli Chheerha . Hence, statement 1 is incorrect. Mango showers are pre-monsoon rains that occur towards the end of the summer season in Kerala and the Coastal areas of Karnataka . These rains are vital for the mango crops as they assist in the early ripening of the fruit. Hence, statement 2 is correct. Bardoli Chheerha is the regional nomenclature for the pre-monsoon thunderstorms in Assam . Matching this term with Punjab is factually inaccurate because Punjab and the Northern Plains typically experience the Loo , which is a hot, dry, and oppressive wind. Hence, statement 3 is incorrect. Blossom showers refer to the pre-monsoon rainfall in Kerala and its neighboring coffee-growing regions. These showers are crucial for the blooming of coffee flowers , ensuring a good yield for the season. Hence, statement 4 is correct. Additional Information Pre-Monsoon Shower Characteristics : Kalbaisakhi (Nor'westers) : Originates over the Chhotanagpur Plateau . Known as the 'Calamity of the month of Baisakh'. Highly beneficial for Jute and Rice cultivation in West Bengal . Loo : A strong, dusty, and hot dry summer wind . Blows primarily over the Indo-Gangetic Plain of North India and Pakistan. Can cause heatstrokes due to extremely high temperatures. Bardoli Chheerha : Also known as Bordoichila in the Assamese language. Occurs just before the onset of the monsoon and is beneficial for tea plantations.