(a) whether old WLL telephones of BSNL have not proved successful in various telecom districts of Bihar and Jharkhand circles;
(b) if so, the reasons therefor;
(c) the total cost incurred on installation of WLL telephones in these districts during the last three years; and
(d) the total number of subscribers who have applied for landline connections upto March 31, 2003, in view of failure of the said telecom system, exchage-wise?