BS Rawat the secretary of Indian coin and currency department set few guidelines before selecting the new design :
Download this Pdf file to Know all the guidelines.
The best part is if you are a designer, you can take part in this historical event by taking participate in the Indian currency symbol contest.
To participate in the contest you have to pay the entry fees of 10$ (500Rs) and if your symbol will be selected, you will get $5000.
Hey guys will catch you later, need to win $5000