This is an R Markdown document which contains interactive map.

library(leaflet)
## Warning: package 'leaflet' was built under R version 3.4.3
set.seed(2018-01-01)

# 10 random location of specific latitute/longitude range
df <- data.frame(lat = runif(100, min = 12.925, max = 12.935),
                 lng = runif(100, min = 77.565, max = 77.575))

# pass those coordinates to leaflet
df %>% 
    leaflet() %>% 
    addTiles() %>% 
    addMarkers(clusterOptions = markerClusterOptions())

Please zoom in/out to interact with the map.