Stranger to contract cannot sue, even if the contract is for his benefit.
Let’s say for example, A sold and delivered goods to B. B is not paying the money. Only A can sue B. His friend C cannot sue B as C is stranger to contract.
Stranger to contract will not have contract with either parties.
On the other hand, Stranger to consideration can sue, only if he is receiving benefit after entering into a contract (As discussed in the case: Chinayya vs Ramayya)
It means that stranger to consideration will have a contract with either parties. Like in the above case law, Chinnaya could sue as she had a contract with Rammayya
Stranger to consideration can sue in India but not in England. However, stranger to contract can sue neither in India nor in England.