Explanation:

Statement 1 is incorrect:The Berlin Committee for Indian Independence was established in 1915 by Virendranath Chattopadhyay, Bhupendranath Dutta, Lala Hardayal and others with the help of the German foreign office under the ‘Zimmerman Plan’.

Statement 2 is correct: In 1913, the Ghadr party was established. The Ghadr programme was to organise assassinations of officials, publish revolutionary and anti-imperialist literature, work among Indian troops stationed abroad, procure arms and bring about a simultaneous revolt in all British
Colonies.

Statement 3 is correct:The Ghadrites intended to bring about a revolt in India. Their plans were encouraged by two events in 1914—the Komagata Maru incident and the outbreak of the First World War. The Ghadrites fixed February 21, 1915, as the date for an armed revolt in Ferozepur, Lahore and Rawalpindi garrisons. The plan was foiled at the last moment due to treachery. The authorities took immediate action, aided by the Defence of India Rules, 1915. The British met the wartime threat with a formidable battery of repressive measures—the most intensive since 1857—and above all by the Defence of India Act passed in March 1915 primarily to smash the Ghadr movement.

Zimmerman Plan: Arthur Zimmermann was State Secretary for Foreign Affairs of the German Empire from 22 November 1916 until his resignation on 6 August 1917. His name is associated with the Zimmermann Telegram during World War I.