Hon. UPERC has released Cost Data Book -2019 and mentioned in the Line charges of new electricity connection that

Only Armoured cables shall be used for all connections. The cable may be provided by the consumer/licensee (if available with the licensee) for load up to 50 KW as per actual requirement, subjected to a maximum limit of 50 meters. In case the applicant's premise, the licensee shall erect additional poles and charges shall be recovered from the consumer under variable line charges for additional length beyond 40 meters.

So, Connection should be released with armored cables only.