You might know by now that India demonetized old higher value notes and brought in new one. The new ones easily tear off easily and generally feel cheaper and less reliable than pervious ones.

One interesting thing people discovered is that rubbing it with cloth makes the ink transfer to the cloth. Sign of crap printing. Here's government response:
The new currency notes have a security feature called 'intaglio printing'. A genuine currency note can be tested by rubbing it with a cloth; this creates a turbo-electric effect, transferring the ink colour onto the cloth
TL;DR: its not a bug, it's a feature