Explanation:

• India has three cropping seasons — rabi, kharif and zaid.
• Zaid season is a short season during the summer months in between the rabi and the kharif seasons.
• It begins after the harvesting of rabi crops.
• Options 1 and 3 are correct: The cultivation of watermelons, cucumbers, vegetables and fodder crops during this season is done on irrigated lands.
• However, this type of distinction in the cropping season does not exist in southern parts of the country.
• There, the temperature is high enough to grow tropical crops during any period of the year, provided the soil moisture is available.
• Therefore, in this region, the same crops can be grown thrice in an agricultural year, provided there is sufficient soil moisture.
• Options 2 and 4 are incorrect: Kharif crops are grown with the onset of monsoon in different parts of the country, and these are harvested in September-October.
• Important crops grown during this season are paddy, maize, jowar, bajra, tur (arhar), moong, urad, cotton, jute, groundnut and soyabean.