Identify from the following, the correct statements about transportation in India.

(A) Atal Tunnel passes through Pir Panjal Range.
(B) About 80% Indian Railway track is of metre gauge.
(C) The Inland Waterways Authority was set up in 1986.
(D) Konkan Railway connects Roha in Karnataka to Mangalore in Kerala.

Choose the correct answer from the options given below:

The correct answer is (A) and (C) only.

Let us analyze each statement step-by-step to understand why this is the correct choice:

Statement (A): Atal Tunnel passes through Pir Panjal Range.
This statement is correct. The Atal Tunnel (originally named Rohtang Tunnel) is a highway tunnel built under the Rohtang Pass in the eastern Pir Panjal range of the Himalayas on the Leh-Manali Highway in Himachal Pradesh, India. At a length of 9.02 km, it is one of the longest highway single-tube tunnels above an altitude of 3,000 meters in the world.

Statement (B): About 80% Indian Railway track is of metre gauge.
This statement is incorrect. Broad gauge (1,676 mm) is the predominant gauge of Indian Railways, accounting for over 95% of the route length as a result of the ongoing "Project Unigauge" which aims to convert metre and narrow gauges into broad gauge. Metre gauge constitutes only a very small, dwindling percentage of the total track length.

Statement (C): The Inland Waterways Authority was set up in 1986.
This statement is correct. The Inland Waterways Authority of India (IWAI) was constituted on October 27, 1986, under the Inland Waterways Authority of India Act, 1985, for the development and regulation of inland waterways for shipping and navigation.

Statement (D): Konkan Railway connects Roha in Karnataka to Mangalore in Kerala.
This statement is incorrect. The Konkan Railway runs along the Konkan coast of India, connecting Roha in Maharashtra (not Karnataka) to Thokur near Mangalore in Karnataka (not Kerala).

Since only statements (A) and (C) are correct, the correct option is "(A) and (C) only".