Upvote:-1
You need to provide sell bill of crops for proof of Income. Also when you claim about your income you need provide documents for same and for same you can submit income certificate from local government like village panchayat.
Upvote:2
Income received in cash can and should be put into a bank account. The problem the visa authority probably has is not with the source of income (a doctor in India working independently, would also get most of his earning in cash) but the absence of inflows into a bank account.