After enrolling 10 crore members and becoming the largest party in the world, the BJP would commence its 90-day Mahasampark Abhiyan from Friday, when the workers will be contacting newly-registered members across the country to verify their details. Under the programme, the party workers would gather personal information of each of the 10 crore new members, give them basic information about the party and discuss the performance of the Modi Government at the Centre. This mass contact will go on till 31st July, to be followed by a chain of training programmes of 15 lakh members for three months, informed party president Amit Shah on Thursday during a press meet.