1. Section 68 - Cash Credits: Where any sum is found credited in the books of an assess maintained for any previous year, and the assesse offers no explanation about the nature and source thereof or the explanation offered by him is not in the opinion of the Assessing Officer, satisfactory, the sum so credited may be charged to income tax as the income of the assesse of that previous year.

2. Section 69 - Unexplained Investments: Where in a year the taxpayer has made investments which are not recorded in the books of account, if any, maintained by him for any source of income, and he offers no explanation about the nature and source of the investments or the explanation offered by him is not in the opinion of the Assessing Officer, satisfactory, then the value of the investments may be deemed to be the income of the taxpayer of such year.

3. Section 69A - Unexplained Money etc.: Where in any year the taxpayer is found to be the owner of any money, bullion, jewellery or other valuable article and such money, bullion, jewellery or valuable article is not recorded in the books of account, if any, maintained by him for any source of income, and the taxpayer offers no explanation about the nature and source of acquisition of the money, bullion, jewellery or other valuable article, or the explanation offered by him is not in the opinion of the Assessing Officer, satisfactory, than the money and the value of the bullion, jewellery or other valuable article may be deemed to be the income of the taxpayer for such year.

4. Section 69B - Amount of Investments, etc. not Fully Disclosed in Books of Account: Where in any year the taxpayer has made investments or is found to be the owner of any bullion, jewellery or other valuable article, and the Assessing Officer finds that the amount expended on making such investments or in acquiring such bullion, jewellery or other valuable article exceeds the amount recorded in this behalf in the books of account maintained by the taxpayer for any source of income, and the taxpayer offers no explanation about such excess amount or the explanation offered by him is not in the opinion of the Assessing Officer, satisfactory, than the excess amount may be deemed to be the income of the taxpayer for such year.

5. Section 69C - Unexplained Expenditure: Where in any year the taxpayer has incurred any expenditure and he offers no explanation about the source of such expenditure or part thereof, or the explanation, if any, offered by him is not in the opinion of the Assessing Officer, satisfactory, then the amount covered by such expenditure or part thereof, as the case may be, may be deemed to be the income of the taxpayer for such year.

6. Section 69D - Amount Borrowed or Repaid on Hundi: Where any amount is borrowed on a hundi from, or any amount due thereon is repaid to, any person otherwise than through an account payee cheque drawn on a bank, the amount so borrowed or repaid shall be deemed to be the income of the person borrowing or repaying the amount aforesaid for the previous year in which the amount was borrowed or repaid, as the case may be.

7. Rate of Taxability:

As per Section 115BBE of the Income Tax Act, if the total income of an assesse includes any income referred to in Section 68, Section 69, Section 69A, Section 69B, Section 69C and Section 69D, the income tax would be payable at the rate of 30%. Notwithstanding anything contained in this Act, no deduction in respect of any expenditure or allowance shall be allowed to the assesse under any provision of the Act, in computing his income referred to in Section 68, Section 69, Section 69A, Section 69B, Section 69C and Section 69D.