Concept:
Indian crops are mainly divided into three agricultural seasons:
• Kharif crops
• Rabi crops
• Zaid crops
Kharif crops are grown during the rainy season.
Step 1: Understand Kharif crops.
Kharif crops are:
• Sown during monsoon season
• Usually planted in June-July
• Harvested in September-October
• Require more water and rainfall
Examples include:
\[
\text{Paddy, maize, cotton, sugarcane}
\]
Step 2: Understand Rabi crops.
Rabi crops are:
• Sown during winter season
• Require less rainfall
• Harvested in spring
Examples include:
\[
\text{Wheat, gram, mustard, barley}
\]
Step 3: Examine the given options.
• Paddy -- Kharif crop
• Maize -- Kharif crop
• Cotton -- Kharif crop
• Gram -- Rabi crop
Step 4: Identify the crop that is not Kharif.
Since gram belongs to the Rabi season, it is not a Kharif crop.
Step 5: Conclusion.
Therefore, the correct answer is:
\[
\boxed{\text{Gram}}
\]