Total cultivable area in India is ______ million hectares.

Correct option is C

India has a vast agricultural land base.
Cultivable area refers to land available for crop production.
As per standard agricultural statistics, cultivable area is about 143.8 million hectares.
This includes net sown area and cultivable wasteland. Options 134.8 and 135.8 are lower estimates.
Hence, 143.8 million hectares is correct. Therefore, option (c) is correct.