Notice u/s.143(2)

No need to worry. Your CA has rightly advised. You may reply by 5th Sept., as an acknowledgement of the letter, along with your readiness to submit any specific details, whenever asked.

Meanwhile try to accumulate all the documentary evidences.

Good Luck.......

Once you acknowledge the receipt of letter,(as said earlier) it is considered as the response. And for imposing any fine or penalty, at least a reminder is sent.

Secondly. you may ask for specific requirement in the said letter,or if any detail is asked in the notice, provide it and ask for any further requirement.

The Clarification asked is Just " Cash Deposit" What whould be our replay for cash deposit. We got he sae notice for 2015-16 FY , HAving cash depositof  1 crore  and the same is transfered for ticket buying and other related expenses.