About 1km north of Lakshman Jhula is this popular ashram offering morning and afternoon Akhanda yoga classes, included in the price. Silence is the rule from 9pm to 9am. The food is excellent and rooms are simple but comfortable and clean. You should book two to three months in advance. If you're not staying, drop in for classes for ₹200.
In season (around November to April), it's generally a three-day minimum stay, but other times you can stay for as little or long as you like.