How can I download the income caste certificate as I have lost it?

As you have not mentioned the name of State, I can provide only general methods to get a caste certificate here.

• If acknowledgment number or application reference number is known to you, then a few of the State Governments allow online download of caste certificate. You can also visit the concerned department with these details, to get the caste certificate.
• If there are no details with you, then you have to apply for a caste certificate again.

Application Process for these certificates differs from State to State. As you have not mentioned the state, I am providing the link to apply for income and caste certificate in few of the states in India.

Income Certificate

If you are from Kerala, check this link for applying income certificate in Kerala.

If you are from Karnataka, check this link for applying income certificate in Karnataka.

If you are from Andhra Pradesh, check this link for applying income certificate in Andhra Pradesh.

If you are from Telangana, check this link for applying income certificate in Telangana.

If you are from Maharashtra, check this link for applying income certificate in Maharashtra.

If you are from Delhi, check this link for applying income certificate in Delhi.

If you are from Tamil Nadu, check this link for applying income certificate in Tamil Nadu.

If you are from Gujarat, check this link for applying income certificate in Gujarat.

If you are from West Bengal, check this link for applying income certificate in West Bengal.

If you are from Odisha, check this link for applying income certificate in Odisha.

If you are from Punjab, check this link for applying income certificate in Punjab.

If you are from Uttar Pradesh, check this link for applying income certificate in Uttar Pradesh.

Caste Certificate

How to get Caste Certificate in Karnataka online?
How to get Caste Certificate in Maharashtra online?
How to get Caste Certificate in Kerala?
How to get Caste Certificate in Rajasthan?
How to get OBC Certificate in Delhi?