Javadekar, who campaigned in support of the saffron party's nominee at Parkal in Warangal district, said separate statehood is neither possible with a sub-regional party like TRS, which has only two MPs nor with Congress.
"We had promised three states and we created three states (during NDA regime). Now, we are promising Telangana and we will create. Because, we have the history. We are not like Congress. They promise one thing and do exactly opposite.
It is not our style. We say what we want and we deliver what we say," he told reporters.
BJP, which is in the forefront of separate Telangana agitation, had sprung a surprise by winning the by-poll to Mahabubnagar held in March.
BJP's victory in Mahabubnagar was seen as a setback to TRS as the constituency is represented in Lok Sabha by its president K Chandrasekhar Rao.
By-polls in Parkal will be held on June 12 along with 17 other assembly constituencies. Parkal is the only seat in Telangana region where byelections are going to be held.
By-poll is necessitated in Parkal due to the disqualification of the sitting Congress MLA, who switched loyalty to Kadapa MP Y S Jagan Mohan Reddy and voted against the Congress government during a floor test in December last.
Parkal is witnessing a multi-cornered contest for the by-election among the candidates of Congress, TDP, BJP, TRS and the YSR Congress.
Though BJP has fielded candidates in other constituencies too, it has a chance of giving tough fight only in Parkal due to its strong support to the separate statehood cause.