Hello srinivasarao,
As you mentioned that your surname has been wrong in your income certificate but let me tell you that these things are a very minor fault. You need not worry about that . You can easily participate in the cet counselling without any fear.
Just keep in mind that you should properly followed the format of income certificate as it's mentioned by the institute and to avail any benefits your income should be less than 8L per annum.
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