Union home minister Rajnath Singh virtually threw rule book at Delhi chief minister Arvind Kejriwal when he came to meet him along with his deputy Manish Sisodia to sort out growing conflict with the Centre on issues of appointments and control over the Anti- Corruption Branch. Sources said Rajnath Singh also asked Kejriwal to stop using arm twisting techniques and give up confrontational attitude of writing terse letters on every issue if he wants amiable relations with the Centre and the LG and run the government.