What was the main cause of food shortage in india after partition ?

Dear Student,
Most of the fertile land went to Pakistan at the time of partition was the major reason food shortage in India after partition.

The following are some more reasons of food shortage in India after partition:

1. Low level of economic development

2. Demographic trends like high growth rate of population

3. Structural inequalities like caste system

4. Lack of opportunities in the form of education and employment to get out of poverty trap

5. Unequal distribution of resources in world economy
   
   Regards