सरकारने ----- रोजी पेटंटच्या कायद्यात (तिसरी) दुरुस्ती जाहीर केली.

The correct answer is Option A (December 26, 2004).

Key Points:
• To meet India's 10-year transition deadline under the WTO TRIPS Agreement (1995–2005), the President of India promulgated the Patents (Amendment) Ordinance, 2004 (Third Amendment) on 26 December 2004.
• The ordinance formally introduced a Product Patent regime in pharmaceuticals, food, and chemicals, replacing the old 1970 Process Patent framework.
• The provisions of this third amendment came into legal force from 1 January 2005, and Parliament later enacted the Patents (Amendment) Act, 2005 in April 2005.
• Because the question specifically asks when the government 'promulgated' (अध्यादेश जारी केला / जाहीर केला) the third patent amendment, the exact date is December 26, 2004.
• The official MPSC final answer key confirms Option 1 (December 26, 2004).
• Key Takeaway: The government promulgated the Third Patent Amendment Ordinance on 26 December 2004 to introduce product patents.