MUMBAI: From Ghatkopar, the first metro would be extended to Wadala towards Mumbai, Teen Haat Naka and Kasarwadavli towards Thane to form the metro region's fourth route.Chief Minister Prithviraj Chavan on Saturday said government is expecting a final feasibility report on this route within a month’s time. The detailed report from Rites is expected by August 15.While replying to a calling attention motion, he admitted that there were mistakes in the first metro which has been implemented on build, operate and transfer basis with private participation and investment.He said the Thane route would be implemented on the lines of Metro 3 which has been planned with the help of Japanese loan. CM’s statement was enough to indicate that all the next routes would now be implemented on the lines of Metro 3 for which the loan has been taken from Japanese Bank for International Cooperation instead of involving private developers and investments as in case of the newly operational first line. It may be recalled that the state and the Reliance Infrastructure are locked in a fierce battle over tariffs.As per the preliminary report the cost of the project is expected to be around Rs 22,000 crore and will have 29 stations on the 32-km route. The Rites have been asked to prepare the detailed report now. If extended up to Wadala, the metro will then synchronised with the monorail which will start operating to Jacob Circle from Wadala. Monorail already runs services from Wadala to Chembur. According to sources, the move will also increase the traffic for monorail which runs through congested areas of SoBo and eastern suburbs of Mumbai.According to Chavan, the directors of the metro rail corporation also felt that considering the growth potential along the eastern express highway EEH and Lal Bahadur Shastri (LBS) road, the metro service could go elevated as well as underground and both options could be studied by the consultants.The first line Versova-Andheri-Ghatkopar has already been made operational while for the second metro, Charkop-Bandra-Mankhurd, the existing contract for elevated corridor could be converted underground for which Rites had been appointed. The third metro Colaba-Bandra-Seepz has been approved by the centre.Considering the prospects of development within Thane city the government had proposed a metro route within Thane city connecting Teen Haat Naka, Kapurbawadi, and Ghodbunder.However, the project is not economically feasible since majority people in Thane city and nearby areas travel to Mumbai to work. According to Chavan, the proposal to connect Thane and Wadala was hence being examined by MMRDA .Chief Minister said the proposal to link Thane, Kalyan and Bhiwandi through mass rapid transit rail is also being studied.Earlier monorail was planned for these cities but now due to growing population, the government has asked Rites to study rail-based mass rapid transit system to link these cities with the newly proposed Wadala-Thane-Kasarwadavli metro.Meanwhile Girish Bapat of the BJP demanded separate ministry for the metro railway while NCP’s Nawab malik said metro railway should over entire MMR which CM assured to consider.