tds on contract.

sir if i donot deduct tds on these two bills of rs 20000 and at the end of the f.y. 20th march two more bill also comes of rs 25000 ... then total bills amount will be rs 40000+20000+20000+25000+25000 then the total bill amount exceeds of rs100000 then i cannot deduct tds on bill amount of rs 40000 as i have already deducted tds on this bill but i deduct tds on bill amount of rs 20000+20000+25000+25000 at one time...Am i right sir???? plz reply me sir