(i) In order to prove mischief of subletting as a ground for eviction under rent control laws, two ingredients have to be established, (one) parting with possession of tenancy or part of it by tenant in favour of a third party with exclusive right of possession; and (two) that such parting with possession has been done without the consent of the landlord and in lieu of compensation or rent.
(ii) Inducting a partner or partners in the business or profession by a tenant by itself does not amount to subletting. However, if the purpose of such partnership is ostensible and a deed of partnership is drawn to conceal the real transaction of sub-letting, the court may tear the veil of partnership to find out the real nature of transaction entered into by the tenant.
(iii) The existence of deed of partnership between tenant and alleged sub-tenant or ostensible transaction in any other form would not preclude the landlord from bringing on record material and circumstances, by adducing evidence or by means of cross-examination, making out a case of sub-letting or parting with possession in tenancy premises by the tenant in favour of a third person.
(iv) If tenant is actively associated with the partnership business and retains the control over the tenancy premises with him, may be along with partners, the tenant may not be said to have parted with possession.
(v) Initial burden of proving subletting is on landlord but once he is able to establish that a third party is in exclusive possession of the premises and that tenant has no legal possession of the tenanted premises, the onus shifts to tenant to prove the nature of occupation of such third party and that he (tenant) continues to hold legal possession in tenancy premises.
(vi) In other words, initial burden lying on landlord would stand discharged by adducing prima facie proof of the fact that a party other than tenant was in exclusive possession of the premises. A presumption of sub-letting may then be raised and would amount to proof unless rebutted.
Source: M A Rashid, Supreme Court Guidelines and Precedents