Explanation:

- Option 1: Sikandar Lodhi

Sikandar Lodhi was a Sultan of Delhi from the Lodhi dynasty, ruling from 1489 to 1517. He was known for his administrative reforms but did not introduce the silver Rupaya.

- Option 2: Humayun

Humayun was the second emperor of the Mughal Empire, ruling intermittently between 1530 to 1556. He faced challenges maintaining his empire, but he was not responsible for issuing the silver Rupaya.

- Option 3: Sher Shah Suri

Sher Shah Suri, the founder of the Suri Empire in North India, is credited with introducing the silver Rupaya in 1540-1545.

He made significant contributions to land and currency reforms.

- Option 4: Akbar

Akbar, one of the greatest Mughal emperors, ruled from 1556 to 1605. He implemented many enduring administrative practices, although the Rupaya had already been introduced before his reign.