Process of RR method :

You check that the W party you converting with has the balance in proper bank account he claiming to convert. After its verified that he owes the amount, you give him through 2nd channel (mostly same bank) or through angaria (cash excepted only after quality/ quantity check). Then the W party give you a DD or do a R.T.G.S. of the amount after deducting commission. This process takes 3 - 4 hours.

Mostly excepted Process of U - Turn (safe and secure) :

W funder's account has capacity to take and give particular amount of cash above 10cr at once. B funder's branch manager calls W funder's branch manager and conforms regarding the available funds. W funder talks to B funder and puts a cheque in his bank for R.T.G.S. or D.D. W funder's bank manager then puts a official mail to b funder's branch manager with a copy of cheque that he can make a D.D. or R.T.G.S. of particular account after the funds are available. B cash + commission is deposited in the bank account of W funder and a R.T.G.S or D.D. of B cash is made my B funder's branch manager itself leaving the commission in the W account..