Training and Discipline:
The armies of the British East India Company, known as the Sepoy Army, were well-trained and disciplined. They had adopted European military tactics and were led by British officers who provided strategic guidance and leadership.

Use of Modern Weaponry:
The British East India Company provided their soldiers with modern weaponry such as muskets and cannons, giving them an advantage over the traditional armies of Indian rulers who primarily relied on outdated weapons like swords and spears.

Effective Communication and Coordination:
The Sepoy Army had a well-established system of communication and coordination, enabling them to respond quickly to changing battlefield conditions. This allowed them to outmaneuver their opponents and gain the upper hand in battles.

Strong Leadership:
The British officers leading the Sepoy Army were experienced and skilled in military tactics. Their leadership played a crucial role in the success of the army, as they were able to make quick decisions and adapt to the tactics of their enemies.

Political Alliances:
The British East India Company was adept at forming alliances with local rulers and using diplomatic means to gain support from various factions. This helped them in consolidating their power and weakening their opponents through political maneuvering.
Overall, the combination of superior training, modern weaponry, effective communication, strong leadership, and political alliances gave the armies of the British East India Company a significant advantage over the armies of Indian rulers, allowing them to consistently emerge victorious in battles.