Yes Abhishek , if individual is subject to Tax Audit u/s 44AB during last p. Yera then TDS will have to be deducted.
Consequences of not deducting TDS will be
1. He will be Assessee in default which attracts penalty and interest u/s 221 and 220 resp.
2. If he will not deduct TDS then simple interest @ 1% for every month or part thereof from the date on which it was deductible till the date of deduction will be charged on Tax (TDS) amount.
3. Also 1.5% p.m. or part thereof will be charged from the date of deduction till the date of deposit on TDS amonut.
4. Most harsh fact about this is that where tax has not been paid after it is deducted, amount may be recovered by govt. by selling all assets of the assessee.