Prime ministerial form of government
With the portfolio allotment and the manner of announcing it, by holding back the big surprises for hours after the swearing-in ceremony at Rashtrapati Bhavan, Mr. Modi has sent out the signal that he is a powerful Prime Minister with significant influence in the party. 

It is said that only Mr. Modi and BJP Party president Amit Shah was aware of the portfolios to be allocated before portfolios were actually allocated.

Electoral considerations in Cabinet reshuffle
1. Mr. Modi has clearly traded the promise of a lean Ministry in the “minimum government, maximum governance” credo for electoral considerations by expanding the Ministry. The emphasis is on bringing in more Ministers to give an edge to the Uttar Pradesh, Punjab and Gujarat Assembly election campaigns in the months ahead.

2. Careful arithmetic in inducting Dalit, OBC and tribal leaders is evident. For instance, Induction of Dalit Ministers is an effort to right their under-representation in the Ministry and to take the edge off the BSP and Aam Aadmi Party challenge in U.P. and Punjab, respectively.