Catch a Structural consultant since the work will become less painful for you. Old to new concrete extension would need application of epoxy material like Nitobond, lokfix(depending on how the structure is) and there are other techniques used. So best, reach an structural expert and throw the idea ...

Fosroc. Use brusbond tgp one coat and on top of it brushbond

Mason or contractor whom you would select will be able to help you with that slab cutting. However, before that please take structural engineer advice. try mailing your requirement to one of the engineers whom i worked ecocon__at__gmail__dot__com. They may also suggest you the approach to take.

Guys, Lime makes your walls breathe and reduces the formation of crack. I dont think such traditional methods can be compromised by birla. if you are spending so much lime rendering option should be considered. Dont consider this unless someone provides a strong technical viewpoint.

I agree with tvsh. Laminates of greenply of 1mm is 1000 rs agree but if he gives you Mica or some other merino product it would be 750-800 rs. Likewise dont compromise on wood. I am sure AGP(I dont know about it ) could be good but based on my research Greenply/Kitply are standard brands.

Hi KK,
If you are using italian hinges(box hinges)use brands like ebco,hettich,grass etc...since the market is flooded with Chinese make every shop will have a new brand.Don't go with local unknown brands.
In case you are using "L" hinges then go for Premium/AKS kind of brands.If you are looking ...

Why dont you go for marineply based kitchen design with natural veneer? Also, you can try natural woods like rubber wood..

To Gatu's question. 1600 Rs/sft seems high but depends on what material and basic rate he is offering. A few things to note:
Contractor usually signs up for 3kg/sft as basic cost and coverag of steel without quoting brand etc, will just say TMT. Be clear since its G+3. Try to get your structural guy ...

Rubber wood is another material for you to go..but if you want to stick with basics, try marine ply for kitchen to avoid issues later. I know its not what you wanted to hear but thats my view.

You can try Niki doors as well..its good.