From my childhood I eat parle g , I really like to eat this biscuit , test is good , I have llots of memories with this biscuit, at that time its cost is 4 rupees only , but now cost was increase , test is also changed a little bit , size of biscuit is also decreases.
Price increases due to inflaction but if they maintain the quality or test of biscuit then it may be best seller biscuit . Now lots of competitor available in market with various product, or substitude, and its rare to find out this biscuit in market.