Here are the current rules on how you can use your Yatra E-cash. This is the current implementation and might change later because of some promotion or offers.
You can check the same on your yatra mobile App by clicking on My Account->My eCash. However, as mentioned in the pic above, in case you canceled any of your bookings with yatra.com and got the refund in form of Yatra eCash then you can use it completely while making any booking in Yatra.com
The amount of cash that can be redeemed in one booking depends on the type of booking. Below mentioned are limits on different types of bookings
Domestic Hotels 10% ( up to Rs. 500)
International hotels 20% (up to Rs.2000)
International flights 5% (up to Rs. 1000)
Domestic flights 2.5% (upto Rs.500)
Activities 5% (up to Rs. 500)
Train AC 10% (up to Rs 120)
Train Non AC 10% (up to Rs 50)
Bus 10%
Holidays 5%
Uber – 50% (up to Rs 50) on every alternate ride.