रूईकर व ______ जे पुढे भारताचे राष्ट्रपती झाले त्यांनी कामगाराना स्वदेशी चळवळीसाठी उद्युक्त केले.

The correct answer is Option D (V.V. Giri).

Key Points:
• V.V. Giri and the Indian Labour Movement:
• Varahagiri Venkata Giri (V.V. Giri, 1894–1980) was a pioneering trade unionist and the 4th President of India (1969–1974).
• Alongside veteran labour leaders like Ramchandra Sakharam Ruikar (R.S. Ruikar), V.V. Giri organized workers across railways, textiles, and factories to link the labour movement with the nationalist Swadeshi cause.
• Giri served as the General Secretary and twice as President of the All India Trade Union Congress (AITUC) in 1926 and 1942.
• He was also one of the chief founders of the All India Railwaymen's Federation (AIRF) in 1923.
• Both Ruikar and Giri mobilized the working class to support indigenous goods and launch industrial strikes against colonial exploitation.
• Key Takeaway: V.V. Giri, who later served as President of India, collaborated with R.S. Ruikar to mobilize industrial workers for the Swadeshi movement.