There is a luggage policy, but usually, luggage will not be weighted at the check-in, unless you carry a refrigerator, plasma TV or a huge bag that exceeds the dimensions of 1m x 1m x 0.7m.
The luggage allowance varies for different classes of travel:

• First class :70kg;
• AC 2-Tier sleeper: 50kg;
• AC 3-tier sleeper/AC chair car/Sleeper class: 40kg;
• Second class: 35kg.