Furlough and parole – (i) Furlough and parole envisage a short-term temporary release from custody; (ii) While parole is granted for the prisoner to meet a specific exigency, furlough may be granted after a stipulated number of years have been served without any reason; (iii) The grant of furlough is to break the monotony of imprisonment and to enable the convict to maintain continuity with family life and integration with society; (iv) Although furlough can be claimed without a reason, the prisoner does not have an absolute legal right to claim furlough; (v) The grant of furlough must be balanced against the public interest and can be refused to certain categories of prisoners.
read here
Prisons (Bombay Furlough and Parole) Rules 1959 , Rule 3(2) – Bombay Furlough and Parole Rules do not confer a legal right on a prisoner to be released on furlough – While Rule 3 provides the eligibility criteria for grant of furlough for prisoners serving different lengths of imprisonment, Rule 4 imposes limitations – The use of the expression “may be released” in Rule 3 indicates the absence of an absolute right – This is further emphasised in Rule 17 which states that said Rules do not confer a legal right on a prisoner to claim to release on furlough – Thus the grant of release on furlough is a discretionary remedy circumscribed by Rules 3 and 4 extracted above – Furlough and parole.
read here