My impressions of the airshow:
I have never visited AI on a Friday before. So my comments are based on prior Thu visit experiences. AI officials have recognized the increasing awareness and willingness among aam junta to attend air shows. Unfortunately the static display section seems to have shrunk. It was really challenging to get a good spot for viewing and god forbid, taking pictures. Was too crowded to enjoy the show. Had to really jostle. Gave up on morning display after 50 mins. Lots of kids with high-end smart phones either taping the entire display and/or snapping images. Of course, there were photo enthusiasts with DSLR and zoom lenses but I saw many of them had to settle around the middle of the static section which is a pathetic spot. I wish the authorities do something about this from next time.
LCA display was tame & insipid compared to last time. Bit disappointed...apart from a couple of vertical pull up maneuvers, nothing of significance which deserves reporting here. Seems likes its still limited to 6.5-7G, at least for air show purposes. Not sure if this can be interpreted in a positive way, heard a few folks referring "Tejas" as Sukohi adding that no way India can build a plane like that
Rafale display was almost similar to what it does in other shows. Rudra, LCH & Sarang moves are also similar. Sarang brought out cheers & Wows from the crowd on a couple of occasions.
Red Bull were fascinating like last time and really impressed the crowd.
Su-30 display again was routine, but tail slide and controlled flat-spin maneuvers brought cheers from crowd.
By the time Russian Knights reached Yelehanka, it was almost 12:30 pm. I saw a bit of formation flying & a couple of maneuvers. Not sure if they did more than that 'cause I missed it. I was hoping they would get to do their bit again in the evening but they didn't move an inch from the tarmac

Waited in hot sun till 4:30 PM. Anyways, am happy about the chance to see them in real metal
I was not able to spend a whole lot of time on stalls but I did manage to speak to a folks in a few DRDO + BEL stalls.
R-118: depending on user requirement, the RWR can filter out friendly emissions or display them as "green". RWR works in conjuction with IFF. Basically highly configurable. Also any platform which emits RF is processed by RWR and displayed to the pilot. So it could be SAM missile, SAM radar, Fighter radar or even AAM radar.
Eagle Eye is the advanced derivative of R-118. Eagle Eye is mainly for Su-30. 6 antennas will provide better coverage for Su-30. Under development.
MAWS works by identifying missile plumes in UV band and alerts pilot about missile launch. Currently deployed on helicopters.
Had a lengthy chat with Kaveri folks. One of the person was a senior position structural & vibration engineer. As reported DMRL has developed SCB in lab...need to productionise the same. The above person thinks that deficit in thrust is not due to materials so much as its due to selection of cycle way early in the project phase. The bypass ratio of .16 is inadequate. The person said if the bypass ratio could be increased to .3 like contemporary engines, thrust deficit could be bridged. Perhaps some gas turbine expert could interpret his rationale.
Lots of faults were discovered during airborne testing in Russia. Right now "Changes" are being implemented and the team hopes to put Kaveri on LCA by year end! Said the cold section does not have any problems but performance of hot section is inadequate.
Design configuration of LCA Mk.2 frozen. No info boards about Mk.2 at ADA stall. Just one scaled down mock-up. As Merlin reported, the fuselage plus is 0.5m; 1m plug affects CG and needs extensive retesting. Nose landing gear may be shifted forward. Some increase in internal fuel volume which will extend endurance & range of the bird. Some aerodynamic improvements are expected to be incorporated in Mk.2 (not a whole lot). Main objective of Mk.2 is to provide a platform with advanced avionics and increased thrust.
LCA Mk.1 high-alpha AOA testing not yet done. The guy said they are still validating recovery mechanisms. No Derby/BVR firing has taken place. Sudarshan LGB delivery from LCA Mk.1 is accomplished per the gentlemen at the stall. OBOGS is installed on LCA Mk.1.
I was shooed away by the DRDO folks when asked about Astra, Nag etc. The person said all those info was confidential and cannot be given out to media persons just like that. Said to refer to DRDO press releases
HUMSA-NG is installed on a couple of ships as of now. The person said Navy is satisfied with its performance so far. They plan to start working on Ultra Low Frequency (1-4 KHz) in the next 3-4 years.
Did a breif run by HAL stalls but could not chat up as it was approaching closing time.
It will take me some time to go through my pics and will post more info as and when I find them.