Watch Your Tongue S01 E34 The Budgeted Speaking

In an attempt to tighten NIL's expenditure, Principal Miss Dixit shortens the pantry and housekeeping supplies. Following the orders, peon Chaturvedi dilutes the phenyl in an empty milk bottle, so that it can last longer. Chaos follows when everyone mistakes the similar looking phenyl bottle for milk's and adds it to their tea which leaves everyone speechless.