The Arthashastra, written by Kautilya in the 4th century BCE, is the earliest surviving treatise on warfare in ancient India. It covers a wide range of topics, including military strategy, tactics, weapons, and fortifications.

The spear was the primary weapon used by ancient Indian infantry. It was a versatile weapon that could be used for both thrusting and throwing. Swords and axes were also used, but to a lesser extent.

The Maurya Empire, founded by Chandragupta Maurya in the 4th century BCE, was known for its powerful cavalry. The Mauryan cavalry was instrumental in the empire's military successes, including the conquest of much of the Indian subcontinent.

The Yuddhamulam was an ancient Indian military formation that consisted of a square or rectangular array of soldiers. It was typically used by infantry and was designed to provide a stable and disciplined formation for battle.

Krishna Deva Raya, the ruler of the Vijayanagara Empire in the 16th century CE, is credited with the development of the military strategy known as ' vyuha '. Vyuha was a complex system of military formations and tactics that was designed to give the Vijayanagara army an advantage in battle.

The Gaja Sena was an ancient Indian military unit that consisted of a group of elephants trained for warfare. Elephants were used in battle for their size, strength, and ability to cause fear and disruption in the enemy ranks.

Chandragupta Maurya, the founder of the Maurya Empire in the 4th century BCE, is known for his military conquests and the establishment of a vast empire that covered much of the Indian subcontinent.

The Ratha Sena was an ancient Indian military unit that consisted of a group of chariots. Chariots were used in battle for their speed, maneuverability, and ability to provide a stable platform for archers and spearmen.

Samudragupta, the ruler of the Gupta Empire in the 4th century CE, is known for his military reforms and the establishment of a standing army. He also led several successful military campaigns that expanded the Gupta Empire.

The Ashva Sena was an ancient Indian military unit that consisted of a group of cavalry. Cavalry was used in battle for its speed, maneuverability, and ability to deliver a powerful charge.

Rajaraja Chola I, the ruler of the Chola Empire in the 10th and 11th centuries CE, is known for his military conquests and the establishment of a powerful empire that dominated much of South India.

The Nara Sena was an ancient Indian military unit that consisted of a group of infantry. Infantry was the backbone of ancient Indian armies and was used for a variety of tasks, including close combat, skirmishing, and siege warfare.

Babur, the founder of the Mughal Empire in the 16th century CE, is known for his military conquests and the establishment of a powerful empire that ruled over much of the Indian subcontinent.

The Dhanurdhara Sena was an ancient Indian military unit that consisted of a group of archers. Archers were used in battle for their range and accuracy, and they could be deployed to support other units or to harass the enemy from a distance.

Shivaji Maharaj, the founder of the Maratha Empire in the 17th century CE, is known for his military conquests and the establishment of a powerful empire that resisted Mughal rule.