Dibang and Lohit are tributaries of the river Brahmaputra. Let's understand each term in detail.

Brahmaputra River:
The Brahmaputra River is one of the major rivers in Asia that flows through China, India, and Bangladesh. It is known as the Tsangpo in China and the Jamuna in Bangladesh. The Brahmaputra River is approximately 2,899 km long and is the ninth-longest river in the world.

Dibang River:
The Dibang River is a tributary of the Brahmaputra River in northeastern India. It is the largest tributary of the Brahmaputra River in terms of water discharge. The Dibang River originates in the Himalayas in China and flows through Tibet and Arunachal Pradesh in India.

Lohit River:
The Lohit River is also a tributary of the Brahmaputra River in northeastern India. It originates in the eastern Himalayas in Tibet and flows through Arunachal Pradesh in India. The Lohit River is known as the Zayul Chu in Tibet.

Significance of Dibang and Lohit Rivers:
Both Dibang and Lohit Rivers are important tributaries of the Brahmaputra River. These rivers play a significant role in the economy and livelihood of the people living in the region. The Dibang River is known for its hydropower potential, and there are several hydroelectric projects proposed on the river. The Lohit River is also known for its hydropower potential and is an important source of irrigation for the agricultural land in the region.

Conclusion:
In conclusion, Dibang and Lohit Rivers are important tributaries of the Brahmaputra River in northeastern India. These rivers play a significant role in the economy and livelihood of the people living in the region.