• NDBGH-4 (Narendra Dev Bottle Gourd Hybrid - 4) is a high-yielding, early-maturing bottle gourd variety developed by Narendra Dev University of Agriculture & Technology, Faizabad (Ayodhya), in 2001. It is widely cultivated across Northern India, including Punjab, UP, Bihar, Rajasthan, and Haryana. 

Key Characteristics and Features:

• Maturity: Known for early maturity, with the first harvest ready approximately 55 days after sowing.
• Fruit Characteristics: Produces medium-long, attractive green, smooth, and cylindrical fruits.
• Yield Potential: High-yielding, with an average yield of approximately 365 quintals per hectare.
• Season: Suitable for both summer and rainy season (Kharif) cultivation.
• Adaptability: Shows high adaptability and consistent performance.

Cultivation Details:

• Recommended Regions: Punjab, Uttar Pradesh, Bihar, Rajasthan, and Haryana.
• Availability: Available as truth-labelled (TL) seeds through outlets like the National Seeds Corporation (NSC) on Mystore.
• Spacing: Requires well-drained, fertile silt loam soil with a pH between 6.5 and 7.5, similar to other recommended varieties.
• NDBGH-4 is popular for its high productivity, marketability, and suitability for commercial cultivation.