Form t-2

whether form T-2 is to be filled for every purchase done from outside delhi? means purchaee agnst C form, exempted goods, capital goods? if vehicle no is compulsory to mention then what to do if quantity of goods are less and goods are delivered by bike/personal vehicle/car? In my case, 5-6 kgs goods were purchsed some times and our office boy carried the same to our premises by usimg bike. our turnover is more than 1 crore. pls help whether we have to submit form t2 for every purchase?