Regular people go to see Taj Mahal. RailFans go to see Ghaziabad Jn. - Praveen

Below 4 items and few more:-
1. concrete bed below sleepers, it should be 1.4 - 1.5 times thicker than that in 110
2. Number of sleepers used per km need to increase upto a required number
3. Rails - 60kg rails needs to be used on golden quadrilateral and HDN routes. 52 kg rails could be used in certain section, but best...
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to my knowledge no one is using 52kg rails for 130. Also, from 2019, it is advised to use 60kg rails in new line and CTRs.
4. Signal :- Minimum ABS signal system is required. Mechanical interlocking is not allowed. RRI or SSI interlocking is expected.
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All other activities like thick web switching are not mandatory, but useful in minimising TSR
Electrification is not mandatory, but it is expected that all OHE are capable for 130 kmph (Rise Reach OHE is exception as of now, but IR is considering no issue in 130 using front panto)
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Please correct me if I am wrong somewhere