Explanation:

- Rajaram: He was a Jat leader who started resistance against Mughal rule, but his role was more as an early rebel, not the main political organiser.

- Churaman: He was a significant early Jat leader who organized the Jats militarily and politically, establishing their presence near Bharatpur.

- Badan Singh: He was a prominent Jat ruler and helped in strengthening Jat power, but the organisation was already set by others.

- Suraj Mal: He is well known for consolidating and expanding the Jat state and making it strong, but the primary political organisation was done before his reign.

The correct answer is:

Option:2, Churaman