According to the Wikipedia article on “Extreme Points of India”, https://en.wikipedia.org/wiki/List_of_extreme_points_of_India
the westernmost point of India is Guhar Moti in Lakhpat taluk of Kutch district of Gujarat. This article mentions that it is at 23.71307 N, 68.03215 E. This appears to be wrong as it gives a point in the sea. However, the village of Guhar Moti is actually at 23.6076 N, 68.5022 E
We note that the population of 242 (in the last census) includes 186 belonging to the scheduled castes, 55 to the scheduled tribes and 1 in the general category. In line 56, we see the nearby pilgrimage centre of Narayan Sarovar with a population of 1156. This is larger than the taluk HQ of Lakhpat which is described as a ghost town with a population of 500-odd. It did figure in the 2000 film “Refugee”, which marked the debut of Abhishek Bachchan and Kareena Kapoor.
Some say that the temple at Koteshwar near Narayan Sarovar is the westernmost point of India, but you can see from the above link to Google maps that this is not true.
Remote as this area may be, it is well connected with roads. There was even a proposal to connect Koteshwar by rail to the nearest railhead at Naliya, but that may have to wait until the closed line from Bhuj to Naliya is converted from metre gauge to broad gauge. Naliya is also the site of India’s westernmost air force base, which hosts Mig-21 fighter aircraft. One of them shot down a Pakistani Navy aircraft near the border in 1999 (more about this below).
This part of Kutch district has a number of industries, mainly based on lignite (brown coal) which is mined nearby. The westernmost industrial unit in India may well be the Akrimota lignite power station on the coast, at 23.7721 N, 68.6442 E.
An overall view of the India-Pakistan border can be seen here
Note the complex border around the Sir Creek. The border is also disputed here, as India and Pakistan differ on the interpretation of a treaty signed between the government of Sind and the ruler of Kutch in 1914. The basic issue here is connected with borders formed by rivers-what happens when the river changes course? More details about the dispute and ongoing negotiations can be seen here: https://en.wikipedia.org/wiki/Sir_Creek
Also read this: https://en.wikipedia.org/wiki/Atlantique_incident
Some literature mentions that the lights of Karachi can be seen from Koteshwar. This may not be true as the distance from here to the centre of Karachi is 200 km.
The border here consists of uninhabited marshlands, which are flooded during the monsoons. Patrolling by boats and aircraft is carried out by both countries. Also see: https://en.wikipedia.org/wiki/Great_Rann_of_Kutch
The Kutch war of 1965 did not concern this area and was confined to the northern borders of Kutch.