In some of these states, such as the vast northern territory of Uttar Pradesh, the party swept elections on its own. In others, such as U.P.'s struggling neighbour Bihar, the BJP stole away one member of the ruling coalition in order to seize power for itself. In yet others, such as the coastal state of Goa, the opposition Congress Party in fact did better than the BJP in the elections only to discover that PM Modi's lieutenants were far more skillful alliance-builders.
Last weekend, in the southern state of Karnataka -- home to India's IT capital, Bangalore -- Mr Modi discovered the limits of this strategy. Karnataka was the last major state ruled by Congress; after a bruising election campaign, the BJP ended up winning more seats in the state assembly, though not quite enough to form an outright majority.
That's when things began to go wrong. Congress, contrary to expectations, did not roll over and play dead. It swiftly organized a coalition with a smaller regional party to form a majority in the assembly -- and announced that it would claim power for itself.
What ensued was both tragic and comic. Tragic, because the BJP's subsequent actions showed how easily India's institutions could be subverted with enough effort. Comic, because -- well, the attempted subversion was so unabashed that one had to laugh.
In India, party leaders seeking to insulate their legislators from temptation tend to try and make them disappear, ideally in a nice five-star resort somewhere with only one access road and poor mobile phone reception. This is so predictable that the tourism department of the neighboring state of Kerala even tweeted an invitation to non-BJP legislators to the "safe and beautiful resorts of God's Own Country."
Congress instead chose to sequester its legislators in a Bengaluru hotel, while the BJP attempted to convert them using threats and bribes, according to various conversations taped by those on the receiving end. Then the new BJP chief minister, within a few hours of being appointed, transferred in a new police chief for the area. He promptly removed the security cordon around the hotel.
What was truly significant, though, was the fact that legislators loyal to Congress and its allies held firm, in spite of apparent offers to "increase your wealth 100 times." In fact, the very openness of such attempts to subvert the constitutional process may have strengthened the legislators' resolve. Eventually, Mr Modi's nominee for the state's chief minister was forced to resign after just 55 hours, to be replaced by the leader of the regional party.
A determined and desperate opposition, such as was on display in Karnataka, isn't good news for PM Modi. The prime minister remains by far the most popular politician in India today and his party is a formidable election-winning machine. It has much more money and is far better organized than its rivals.
But, with national elections now less than a year away, the Karnataka episode reveals what Mr Modi should most fear. Even in his extraordinary performance in the 2014 elections, in which the BJP was the first party in 30 years to win a parliamentary majority, he took home only 31 percent of the vote. A united and motivated opposition could still defeat him. His position atop India's complicated politics looks quite a bit less secure than it did just a few days ago.
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