The Nagarvel plant, also known as the Betel leaf plant or Piper betle, is a perennial, dioecious climber, according to E-Flora of Gandhinagar and National Parks Board (NParks). It is native to Southeast Asia, including India, and is known for its heart-shaped, waxy green leaves. These leaves are used for medicinal and culinary purposes, particularly in the preparation of "Paan," a traditional South Asian mouth freshener. The plant is relatively easy to grow, preferring filtered sunlight or partial shade and a well-draining, slightly damp soil. 

Key characteristics of the Nagarvel plant:

• Growth Habit: It is a climbing vine, typically grown on trellises or supports. 
• Leaves: Heart-shaped, glossy green, and aromatic when crushed. 

Uses:

• Culinary: Leaves are used to make Paan. 
• Medicinal: Traditionally used for various ailments, including digestive issues, oral hygiene, and as a mild stimulant. 
• Environmental Preferences: Prefers a warm, humid environment with filtered sunlight or partial shade. 
• Soil: Well-draining soil that is slightly damp but not waterlogged. 
• Propagation: Propagated through stem cuttings. 

Additional points:

• Nagarvel plants are known for their medicinal properties and are used in traditional Ayurvedic practices. 
• The leaves are believed to have antiseptic and anti-inflammatory properties. 
• Chewing betel leaf with areca nut is a popular practice in South Asia, believed to freshen breath and aid digestion. 
• The plant is also considered auspicious in some cultures and is associated with wealth and abundance.