If you are a salaried employee at the coaching centre then they might have deducted your TDS under section 192 and there is no section as 192B in income tax. What is the rate at which they have deducted your TDS.
If you are a freelancer teacher and if that's your main business you can claim fueld and other expense against your tuition fees.
Yes you can claim 80C deduction in addition to fuel and other expense. 80C deduction is totally different from business and other incomes.
You need to file ITR 4 if this is your only income.
If you need any help in filing you can contact me over phone call or mail.
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