The Internet of Things’ growth is exponential which in turn is put into perspective by the fact that we have great threat from quantum computing this requires we develop quantum resistant crypto solutions for resource constrained environs. In this paper we address the critical security issue in IoT we do so by putting forth three novel post quantum crypto (PQC) algorithms. They are Lattice Based Light Weight Encryption (LBLWE) which is followed by Compact Code Based Cryptosystem (CCBC) and Hash Optimized Digital Signature (HODS). What we have designed are algorithms which not only provide quantum resistant security but also which are at the same time very much at home in the IoT devices which may not have much processing power, memory or energy to go around. Through in-depth theoretical study and empirical research, we present that our put forth schemes outperform that of the conventional crypto algorithms. LBLWE, we report to have achieved 65% improved performance in terms of encryption over RSA, In CCBC we see key size reduction of 91% as compared to which is the performance of traditional McEliece implementations, and in HODS we report 80% energy efficiency gain over ECDSA for digital signatures. We present that these results in fact prove out the viability of what we are putting forth in a real world IoT setting, in very large part we are contributing to the quantum resistant security of the IoT infrastructure.