For best information I'd purchase a book such as AVS Chacoan Horned Frogs and Frogs and Toads by Devin Edmonds. I haven't bred these but I plan to in the future but what I can tell you is that you'll need quite a few froglets housed in their own enclosures in order to have a chance at getting a pair or if you can get a sexed pair, the better. They also produce a lot of eggs so you'll need loads of space to rear the tadpoles and then the froglets. Because you live in India I'd imagine heating won't be needed and this is such a bonus, making things a lot easier.