Peshwa Era :-
During this era, Peshwas belonging to the Bhat family controlled the Maratha Army. and later became de facto rulers of the Maratha Empire. During their reign, the Maratha Empire dominated most of the Indian subcontinent. With this change began the second period—the period of Peshwa domination—in Maratha history in which the Maratha state was transformed into an empire.
Balaji Vishwanath :-
Shahu appointed Peshwa Balaji Vishwanath in 1713. From his time, the office of Peshwa became supreme while Shahuji became a figurehead.Balaji Vishwanath, a Brahmin, started life as a petty revenue official and then rose step by step. He rendered Shahu loyal and useful service in supposing his enemies. He isPeshwa or the mukh pradhan (chief minister).
- His first major achievement was the conclusion of the Treaty of Lonavala in 1714 with Kanhoji Angre, the most powerful naval chief on the Western Coast. He later accepted Shahuji as Chhatrapati.
- In 1719, an army of marathas marched to Delhi after defeating Sayyid Hussain Ali, the Mughal governor of Deccan, and deposed the Mughal emperor. The Mughal Emperors became puppets in the hands of their Maratha overlords from this point on.
Baji Rao I :-
Balaji Vishwanath gradually consolidated Shahu’s hold and his own over Maratha sardars and over most of Maharashtra except for the region south of Kolhapur where Raja Ram’s descendants ruled. The Peshwa concentrated power in his office and eclipsed the other ministers and sardars.
- In 1737, Marathas under Bajirao I raided the suburbs of Delhi in a blitzkrieg in the Battle of Delhi (1737).
- The Nizam left Deccan to rescue Mughals from the invasion of Marathas, but was defeated decisively in the Battle of Bhopal. The Marathas extracted a large tribute from the Mughals and signed a treaty which ceded malwa to the Marathas.
- The Battle of Vasai was fought between the Marathas and the Portuguese rulers of Vasai. The Maratha victory in this war was a major achievement of Baji Rao's time in office.
Balaji Baji Rao :-
Balaji Baji Rao followed in the footsteps of his father and further extended the empire in different directions taking Maratha power to its height. Maratha armies now overran the whole of India. Maratha control over Malwa, Gujarat and Bundelkhand was consolidated. Bengal was repeatedly invaded and, in 1751, the Bengal Nawab had to cede Orissa.
In the South, the state of Mysore and other minor principalities were forced to pay tribute. In 1760, the Nizam of Hyderabad was defeated at Udgir and compelled to cede vast territories yielding an annual revenue of Rs 62 lakh.
In the north, the Marathas soon became the power behind the Mughal throne. Marching through the Gangetic Doab and Rajputana they reached Delhi where, in 1752, they helped Imad-uI-Mulk to become the wazir.