Radar Scene Correlation, Fuel Air Explosives, GPS Terminal Guidance? where you did find this information.
India has developed Ring Laser Gyro INS, Micro Navigation System, etc earlier on the Agni 4. According to the DRDO, this missile is one of its kind. It showcased many new technologies for the first time and is a quantum leap in terms of missile technology. The missile is light in weight and has two stages of solid propulsion and a payload with re-entry heat shield. The composite rocket motor technology, which has been used for the first time, has also given excellent performance. The missile system is equipped with modern and compact avionics with redundancy to provide high level of reliability.
The indigenous ring laser gyros-based high-accuracy INS (Rins) and micro navigation system (Mings) complementing each other in redundant mode, have been successfully flown in guidance mode for the first time.
An Agni-V Leap Forward | Flashpoints
Tarmak007 -- A bold blog on Indian defence: TERMINAL GUIDANCE: Made in India seekers dressed up for fire play
much of the old ones i think are inspired by Soviet Designs which are mostly heavy liquid fuelled based in hardened silos. DF-31 development began rougly when Soviets were also moving to solid fuelled road mobile missiles.chinese have geographical advantage as far as India is concerned. Can reach much of Indian cities with DF-21s, which they have in few good numbers. DF-31/41 is meant for US. China also has higher capacity warheads to offset the need for accuracy. It doesn't matter if CEP is 1km when they have megaton warheads.
Agni V does the job of striking Beijing; it is a China-specific missile, nothing more. India doesn't need to threaten anyone else, just China.

joking
Chinese DF-4 and DF-5 is not even comparable to Indian Prithvi series missile. A missile which take 3 TELs 2hours of refueling and then blasts off at launch. DF-41 is MIRV. Take down Delhi and 9 surround cities one go. Still there are no proofs that China tested MIRV...maybe they'll take few of our cities as well. Even DF-31 had a range of 13000km..... and Agni-V only 5000 km..... If it has 13000 km range what it supposed to do with India, we aren't 12000km away from china. As china has strong force we should ensure our safety it doesn't mean we are wishing a war with China.... Why china modernizing its armed forces in so hurry.... is china going to fight with USA might. In my opinion CEP matter DF-31 CEP : 500 m vs Agni 5 CEP : 40 m.
When China launched its own ICBM in 70s, it had more poverty than current Indian levels.
Indeed even today China after US has biggest budget in military but 150 000 000 people live under poverty in China. So instead of preaching India to China also should concentrate on eradicate its own poverty. I think these so called experts in global times think that China is some developed nation when reality is China is also a developing country having 100th rank in HDI.
But one thing is right, Yes India's missiles dwarf's in front of China. They have ICBMs up to 15000 km while we have just 5000 km range. But India is enemy are not 10000 km away, so it is ok. We are only the 5th nation on the entire world to have this technology. Isn't that an achievement?