I think , you got telephonic information from Thane for appearing before the SI and the problem is that presently you are in Bangalore. If, there is an FIR against you , you should ask him the details of FIR like FIR Number at least.
Now come to section 354IPC and 66 IT ACT.
354-- Assault or criminal force to woman with intent to outrage her modesty.—Whoever assaults or uses criminal force to any woman, intending to outrage or knowing it to be likely that he will thereby outrage her modesty, shall be punished with imprisonment of either description for a term which may extend to two years, or with fine, or with both.
66A IT ACT--. Punishment for sending offensive messages through communication service, etc.
Any person who sends, by means of a computer resource or a communication device,—
(a) any information that is grossly offensive or has menacing character; or
(b) any information which he knows to be false, but for the purpose of causing annoyance, inconvenience, danger, obstruction, insult, injury, criminal intimidation, enmity, hatred or ill will, persistently by making use of such computer resource or a communication device,
(c) any electronic mail or electronic mail message for the purpose of causing annoyance or inconvenience or to deceive or to mislead the addressee or recipient about the origin of such messages,
My suggestion will be firstly you must know the details of your FIR and ask the person calling you to send written notice to appear before him because you are very far from him.
If, you have got all the details of your FIR , then better to take Anticipatory Bail from the court of Thane with the help of some local lawyer.
Some time , notorious people using these method to extort money from innocent .
Good luck, Dont forget to Rating