Letter boxes now on Rani Chennamma Express train
After the success of the ‘letter boxes’ introduced on three Railway Mail Service (RMS) coaches, the Karnataka Circle of India Post will introduce the same on more routes.
Letters and postcards posted in these boxes can be delivered the next morning at specified locations, which otherwise takes at least two days.

The letter boxes are being reintroduced after a gap of over three decades, when it was discontinued in 1984.
At present, the boxes have been put on Rani Chennamma (Bengaluru-Kolhapur), Chennai Mail (Bengaluru-Chennai), Hubballi-Vijayawada, and Netravathi (Thiruvananthapuram-Mumbai LTT) trains.