Filing ITR 4s and still preparing p&l a/c and balance sheet?

Yes, its always better for our own records. But no space to fill the same in ITR 4S.

ITR 4s has no icons for P&l and balance sheet .

But its always safe and must for your own records. You must always prepare them.

Can we show income more than 8% in ITR 4s? 

Also if we are preparing P&L A/C and Balance Sheet,

does the income shown in 4s and Profit under P&L A/C has to match?

If you are filling ITR 4S than it is not mandatory to prepare and present your balance sheet to the Income tax department .

It is basically a retrun to fill your income if your gross receipts during the year doesn't exceeds Rs 10000000 and you are showing your profit equals to or more than 8%.

Lastly yes you can show more than 8% of profit in your ITR-4S 

and if you are preparing p/l ac than it is necessary that your profit must be match with the profit shown in ITR

If you are filling ITR 4S than it is not mandatory to prepare and present your balance sheet to the Income tax department .

It is basically a retrun to fill your income if your gross receipts during the year doesn't exceeds Rs 10000000 and you are showing your profit equals to or more than 8%.

Lastly yes you can show more than 8% of profit in your ITR-4S 

and if you are preparing p/l ac than it is necessary that your profit must be match with the profit shown in ITR

Yes you can. Tax treatment and accounting are different. You can still have your books of accounts for the smooth running of business and to know the financial outcome of the business.