Teletalk, March 1 -- owned mobile operator, has completed 20 years of operation but continues to lag behind private competitors in Bangladesh.

The company has yet to achieve full 4G network coverage, while network issues persist, with subscriber numbers falling, officials said.

One of the major setbacks for Teletalk is the lack of sufficient battery backup for its towers, according to subscribers.

When there is a power outage, customers in 830 tower areas lose network access. If power remains unavailable for more than an hour, around 40% of Teletalk's towers fail to provide connectivity.

The company currently has only 5,661 base transceiver stations (BTS), whereas it requires over 15,000 for adequate coverage, according to the officia...