The resignation of Gurudas Kamat,who was apparently unhappy over portfolios allocated to him in the ministerial council reshuffle,is a 'glaring example' of UPA ministers not following Prime Minister's instructions,senior BJP leader Rajnath Singh said on Wednesday. The BJP leader said, other than Kamat,ex-MoS for Railways Mulkul Roy defied Manmohan Singh's order and did not visit Kamrup district in Assam where Guwahati-Puri Express was derailed. Even A Raja did not follow the Prime Minister's order during his tenure as Telecom Minister,he added. Singh also ridiculed ministerial reshuffle and said it was just a political adjustment.