Income tax on education loan subsidy

Can anybody tell me if income tax is applicable on CSIS education loan subsidy or not?

I have received some subsidy from government for the interest on the education loan in moratorium period of 5 years. I have paid 4 EMIs last year for the education loan. I want to know how much interest should I claim for tax deduction under 80 E. I paid 4 EMIs and then I received the subsidy after which EMIs were stopped. So is it required to include the subsidy under income?