Concept:
In traditional Indian agriculture, livestock played multiple roles, but their primary economic importance historically differed from modern dairy-oriented systems.
Step 1: Understanding Traditional Livestock Role
• Agriculture was predominantly manual and animal-driven.
• Mechanization was absent or minimal.
• Cattle were used mainly as working animals.
Step 2: Draught Power (Option A)
• Bullocks were used for ploughing, transportation, irrigation.
• Backbone of agricultural operations.
• Provided continuous utility throughout the year.
Step 3: Other Options Analysis
Hide and Skin (B)
• By-product after death
• Not primary economic function
Meat Production (C)
• Limited in traditional Indian context due to cultural reasons
Milk Production (D)
• Important, but historically secondary to draught usage
Step 4: Final Conclusion
• Primary function = agricultural work
\[
\boxed{\text{Draught power for agriculture}}
\]
\[
\boxed{\text{Option (A)}}
\]