Narlikar, J. V.2012-03-092012-03-091974-01-12http://hdl.handle.net/11007/1108The ideas originally proposed to discuss continuous creation of matter are reconsidered in the context of the big bang cosmological models. It is shown that singularity-free big bang models are possible under the modified field equations of general relativity. However, the case is made out that matter creation takes place in several mini-bangs at different epochs rather than in one big bang. The implications of this idea for high energy astrophysics and for gravitational radiation are discussed.enCosmologyAstrophysicsMatter creationHigh energy astrophysicsGravitational radiationArticle