कोणत्या क्षेत्राने ऑगस्ट 1991 ते सप्टेंबर 2006 या कालावधीत सर्वाधिक थेट विदेशी गुंतवणूक आकर्षित केली ?

The correct answer is Option B (Electrical equipments).

Key Points:
• According to historical cumulative data published by the Department of Industrial Policy and Promotion (DIPP) for the period August 1991 to September 2006, the sector categorized as 'Electrical Equipments (including computer software and hardware)' attracted the highest cumulative FDI inflows.
• During this early post-reform phase, computer software and electronics were officially tabulated under the Electrical Equipments group by DIPP, resulting in its top rank with over 17–18% of total cumulative inflows.
• Subsequently, services (financial/non-financial) were bifurcated and emerged as the top sector in later years, but for the specific milestone period August 1991 to September 2006, Electrical Equipments held the highest position.
• The official MPSC final answer key confirms Option 2 (Electrical equipments).
• Key Takeaway: Between August 1991 and September 2006, Electrical Equipments (including computer software) attracted the highest cumulative FDI.