Banks have different ways to calculate loan eligibility. If loan eligibility based on your income is likely to be an issue, then talk to several banks to find out which bank can give you the maximum amount. It may so happen that based on your own income, as well as your spouse's, you may still not be eligible to get the amount of loan that you require.
Then you must seek a bank that allows you to club the incomes of your other close relatives (parents, siblings, children etc) to increase your loan eligibility. Some banks may agree to club the incomes of two siblings for the purpose of calculating the loan eligibility.
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