Saket Ranjan means "Lord Shri Rama" who is referred to as the मर्यादा पुरोषोत्तम राम
EXPLANATION AND BACKGROUND
INFORMATION:
SAKET:
Saket is the ancient name of Ayodhya- the birthplace of Lord Shri Rama. Ayodhya is also known as the Vetican of Hindus. It is said that the City Saket was Constructed by the Gods themselves and hence it is considered as the most sacred place on the earth. In mythology and even hindi poetry, सकेतनगरी has been desscribed as a very pious place and next only to the heaven.
Saket is also the name of a famous book pf poetry by Maithili Sharan Gupt. In this book he writes the Ramayana from Kaikeyi's view and how a mother would have felt.
RANJAN:
Ranjan means source of happiness, pride and
satisfaction as evident in the word: मनोरंजन: मन+रंजन
SAKET RANJAN:
Now, in accordance with the meanings of the two words above, the word, Saket Ranjan means "the one who is the source of happiness, pride and
satisfaction for Ayodhya." Which in turn means Lord Shri Rama, who is supposed to be the Complete Man, sans all vices and ideal of how one should conduct themselves.