their signatures, and they are drawn on an account maintained with their banker, the presumption under Section 118 and 139 of N.I.Act is operating in favour of the complainant and against the accused that the cheques were issued towards repayment of any legally recoverable debt or liability. Therefore the burden is on the accused to rebut the presumption. After receipt of legal notice, at the earliest available opportunity, the accused have denied and disputed the allegations that accused Praveen Jain borrowed a sum of Rs.6,80,000/and towards repayment of the same the subject cheques are issued. Of course the accused have disputed the financial capacity of the complainant and that accused Praveen Jain had the necessity to borrow a huge sum of Rs.6,80,000/-. Therefore, it is for the complainant not only to prove that he had the financial capacity, but also to establish that the relevant point of time accused Praveen Jain had the necessity of borrowing Rs.6,80,000/-.