Bhrigu Express: बलिया की आन बान और शान , भृगु एक्सप्रेस है तुम्हारा नाम। हर रविवार तुमसे मिलना है मेरा काम। - Shanzil Kabir

3 AC COACH DESIGN additional 3 see through Windows have to be provided for the Middle Berthed , Upper Berthed and Side Upper Berthed passenger.
During the travel all these passengers need not depend on the Lower Berthed passenger ,such as what is this station ?Approaching station ? etc.

---

Instead of a big window like that till upper berth, a simple GPS station locator can be there near the current window to display the approaching station.

---

Not big window .Additional 2 windows in the 3+ 3 berth bay and 1 window at the side upper berth of siges 6 inch ( 15 cm height and width of the present window ) .The existing window height have to be reduced by 4 to 6 inches and provide 6 inch height and present window width at appropriate height so as Middle berth and upper Berthed passenger views outside.
These windows provisions are possible only in the AC coaches.Sleeper class coaches Shutters are occufied these places.

---

Thats what , instead we can place a GPS showing the current station

---